Planting calendar for Ottawa, CA

🇨🇦 Ottawa, CA

Planting guide for 207 crops · Warm-summer humid continental climate

USDA Zone 1 165 frost-free days Köppen Dfb

USDA Zone

1

Frost-Free

165days

Winter Low

-15°C

❄️

Summer High

27°C

🌡️

Rainfall

920mm

💧

Climate

Dfb

Warm-summer humid continental

Quick Answer: When to Plant in Ottawa

The best time to plant in Ottawa is during the warmer months from late spring to early fall. The growing season lasts 165 frost-free days with temperatures ranging from -15°C in winter to 27°C in summer. Ottawa is in USDA Hardiness Zone 1 with a Warm-summer humid continental climate (Dfb), and 207 out of 207 crops can be grown here.

See what to plant this month in Ottawa →

Growing Guide for Ottawa

Ottawa, CA sits in USDA Hardiness Zone 1 with a Warm-summer humid continental climate (Köppen Dfb). The growing season spans approximately 165 frost-free days, with winter temperatures dropping to -15°C and summer highs reaching 27°C. Annual rainfall averages 920mm.

While Ottawa's 165-day growing season is shorter, gardeners can still grow a wide variety of crops. Focus on cold-hardy vegetables, use season extension techniques, and start seeds indoors early. Out of $207 crops in our database, 207 can be successfully grown in Ottawa. The easiest crops to start with are Lettuce, Mint, Radish.

What grows best in Ottawa?

The best plants for Ottawa include Lettuce, Mint, Radish, Arugula, Swiss Chard. These are rated "easy" for this climate zone and have the longest planting windows.

Can I grow vegetables in Ottawa in winter?

Winter growing in Ottawa is limited due to frost. However, frost-tolerant crops like kale, spinach, and garlic can often be planted in fall for early spring harvest. Use cold frames or row covers to extend the season.

Expert Tips for Growing in Ottawa

✓ Start Lettuce in Mar, Apr, May, Jul, Aug. Lettuce tolerates frost, so you can plant early.
✓ Start Mint in Mar, Apr, May, Jul, Aug. Mint tolerates frost, so you can plant early.
✓ Start Radish in Mar, Apr, May, Jul, Aug. Radish tolerates frost, so you can plant early.
✓ Start Arugula in Mar, Apr, May, Jul, Aug. Arugula tolerates frost, so you can plant early.
✓ Start Swiss Chard in Mar, Apr, May, Jul, Aug. Swiss Chard tolerates frost, so you can plant early.

Explore More Planting Guides

Compare planting calendars across cities, or dive deep into individual plant growing guides.

Browse All Cities Explore Plants

🌟

Best Plants for Ottawa

Easiest plants with the longest growing windows in your climate

Lettuce

Plant in: Mar, Apr, May, Jul, Aug

30-60 days to harvest

Mint

Plant in: Mar, Apr, May, Jul, Aug

60-90 days to harvest

Radish

Plant in: Mar, Apr, May, Jul, Aug

22-30 days to harvest

Arugula

Plant in: Mar, Apr, May, Jul, Aug

21-40 days to harvest

Swiss Chard

Plant in: Mar, Apr, May, Jul, Aug

50-60 days to harvest

Planting Calendar

Green cells show recommended planting months for each crop in Ottawa

Plant Wait E Easy M Medium H Hard

Easy (26) Great for beginners

Plant	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Basil					✓	✓	✓	✓
Lettuce			✓	✓	✓		✓	✓
Mint			✓	✓	✓		✓	✓
Green Bean					✓	✓	✓	✓
Sunflower					✓	✓	✓	✓
Radish			✓	✓	✓		✓	✓
Arugula			✓	✓	✓		✓	✓
Swiss Chard			✓	✓	✓		✓	✓
Green Onion			✓	✓	✓		✓	✓
Marigold					✓	✓	✓	✓
Zinnia					✓	✓	✓	✓
Pansy			✓	✓	✓		✓	✓
Cosmos					✓	✓	✓	✓
Aloe Vera					✓	✓	✓	✓
Chive			✓	✓	✓		✓	✓
Calendula			✓	✓	✓		✓	✓
Catnip			✓	✓	✓		✓	✓
Clover			✓	✓	✓		✓	✓
Cress			✓	✓	✓		✓	✓
Dandelion			✓	✓	✓		✓	✓
Nasturtium					✓	✓	✓	✓
Yarrow			✓	✓	✓		✓	✓
Borage			✓	✓	✓		✓	✓
Mizuna			✓	✓	✓		✓	✓
Tatsoi			✓	✓	✓		✓	✓
Buckwheat					✓	✓	✓	✓

Medium (160) Some experience helpful

Plant	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Tomato					✓	✓	✓	✓
Carrot			✓	✓	✓		✓	✓
Pepper					✓	✓	✓	✓
Cucumber					✓	✓	✓	✓
Zucchini					✓	✓	✓	✓
Spinach			✓	✓	✓		✓	✓
Kale			✓	✓	✓		✓	✓
Rosemary			✓	✓	✓		✓	✓
Cilantro			✓	✓	✓		✓	✓
Pea			✓	✓	✓		✓	✓
Potato					✓	✓	✓	✓
Onion			✓	✓	✓		✓	✓
Strawberry			✓	✓	✓		✓	✓
Lavender			✓	✓	✓		✓	✓
Chili Pepper					✓	✓	✓	✓
Sweet Potato					✓	✓	✓	✓
Thyme			✓	✓	✓		✓	✓
Parsley			✓	✓	✓		✓	✓
Broccoli			✓	✓	✓		✓	✓
Bok Choy			✓	✓	✓		✓	✓
Beet			✓	✓	✓		✓	✓
Brussels Sprouts			✓	✓	✓		✓	✓
Cabbage			✓	✓	✓		✓	✓
Collard Greens			✓	✓	✓		✓	✓
Dill			✓	✓	✓		✓	✓
Fennel					✓	✓	✓	✓
Ginger					✓	✓	✓	✓
Jalapeno					✓	✓	✓	✓
Kohlrabi			✓	✓	✓		✓	✓
Leek			✓	✓	✓		✓	✓
Lemongrass					✓	✓	✓	✓
Cantaloupe					✓	✓	✓	✓
Mustard Greens			✓	✓	✓		✓	✓
Okra					✓	✓	✓	✓
Oregano			✓	✓	✓		✓	✓
Parsnip			✓	✓	✓		✓	✓
Pumpkin					✓	✓	✓	✓
Sage			✓	✓	✓		✓	✓
Shallot			✓	✓	✓		✓	✓
Snap Pea			✓	✓	✓		✓	✓
Butternut Squash					✓	✓	✓	✓
Acorn Squash					✓	✓	✓	✓
Tomatillo					✓	✓	✓	✓
Turnip			✓	✓	✓		✓	✓
Watercress			✓	✓	✓		✓	✓
Blackberry			✓	✓	✓		✓	✓
Blueberry			✓	✓	✓		✓	✓
Raspberry			✓	✓	✓		✓	✓
Fig			✓	✓	✓		✓	✓
Grape			✓	✓	✓		✓	✓
Lemon					✓	✓	✓	✓
Lime					✓	✓	✓	✓
Papaya					✓	✓	✓	✓
Passion Fruit					✓	✓	✓	✓
Pineapple					✓	✓	✓	✓
Banana					✓	✓	✓	✓
Turmeric					✓	✓	✓	✓
Chamomile			✓	✓	✓		✓	✓
Dahlia					✓	✓	✓	✓
Petunia					✓	✓	✓	✓
Snapdragon			✓	✓	✓		✓	✓
Sweet Pea Flower			✓	✓	✓		✓	✓
Morning Glory					✓	✓	✓	✓
Chrysanthemum			✓	✓	✓		✓	✓
Rose			✓	✓	✓		✓	✓
Jasmine					✓	✓	✓	✓
Hibiscus					✓	✓	✓	✓
Bamboo			✓	✓	✓		✓	✓
Lemon Balm			✓	✓	✓		✓	✓
Stevia					✓	✓	✓	✓
Tarragon			✓	✓	✓		✓	✓
Amaranth					✓	✓	✓	✓
Anise					✓	✓	✓	✓
Bay Laurel			✓	✓	✓		✓	✓
Black-Eyed Pea					✓	✓	✓	✓
Boysenberry			✓	✓	✓		✓	✓
Broccolini			✓	✓	✓		✓	✓
Cayenne Pepper					✓	✓	✓	✓
Chickpea					✓	✓	✓	✓
Chicory			✓	✓	✓		✓	✓
Chinese Cabbage			✓	✓	✓		✓	✓
Coffee Plant					✓	✓	✓	✓
Comfrey			✓	✓	✓		✓	✓
Curry Leaf					✓	✓	✓	✓
Dragon Fruit					✓	✓	✓	✓
Edamame					✓	✓	✓	✓
Elderberry			✓	✓	✓		✓	✓
Endive			✓	✓	✓		✓	✓
Fenugreek					✓	✓	✓	✓
Foxglove			✓	✓	✓		✓	✓
Freesia					✓	✓	✓	✓
Goji Berry			✓	✓	✓		✓	✓
Gooseberry			✓	✓	✓		✓	✓
Habanero					✓	✓	✓	✓
Hops			✓	✓	✓		✓	✓
Horseradish			✓	✓	✓		✓	✓
Hyssop			✓	✓	✓		✓	✓
Jicama					✓	✓	✓	✓
Kiwi			✓	✓	✓		✓	✓
Kumquat			✓	✓	✓		✓	✓
Lentil					✓	✓	✓	✓
Lilac			✓	✓	✓		✓	✓
Luffa					✓	✓	✓	✓
Lupine			✓	✓	✓		✓	✓
Marjoram					✓	✓	✓	✓
Millet					✓	✓	✓	✓
Moringa					✓	✓	✓	✓
Mulberry			✓	✓	✓		✓	✓
Nectarine			✓	✓	✓		✓	✓
Nigella			✓	✓	✓		✓	✓
Olive			✓	✓	✓		✓	✓
Peach			✓	✓	✓		✓	✓
Pear			✓	✓	✓		✓	✓
Pennyroyal			✓	✓	✓		✓	✓
Persimmon			✓	✓	✓		✓	✓
Plum			✓	✓	✓		✓	✓
Pomegranate			✓	✓	✓		✓	✓
Poppy			✓	✓	✓		✓	✓
Quinoa			✓	✓	✓		✓	✓
Radicchio			✓	✓	✓		✓	✓
Rhubarb			✓	✓	✓		✓	✓
Rutabaga			✓	✓	✓		✓	✓
Savory			✓	✓	✓		✓	✓
Sesame					✓	✓	✓	✓
Sorghum					✓	✓	✓	✓
Sorrel			✓	✓	✓		✓	✓
Soybean					✓	✓	✓	✓
Star Fruit					✓	✓	✓	✓
Sweet Corn					✓	✓	✓	✓
Taro					✓	✓	✓	✓
Tea Plant			✓	✓	✓		✓	✓
Tiger Lily			✓	✓	✓		✓	✓
Tulip			✓	✓	✓		✓	✓
Winter Squash					✓	✓	✓	✓
Yam					✓	✓	✓	✓
Chia					✓	✓	✓	✓
Cranberry			✓	✓	✓		✓	✓
Flax			✓	✓	✓		✓	✓
Guava					✓	✓	✓	✓
Lovage			✓	✓	✓		✓	✓
Passion Flower			✓	✓	✓		✓	✓
Physalis					✓	✓	✓	✓
Sweet Woodruff			✓	✓	✓		✓	✓
Verbena			✓	✓	✓		✓	✓
Waterlily					✓	✓	✓	✓
Wisteria			✓	✓	✓		✓	✓
Wintergreen			✓	✓	✓		✓	✓
Black Currant			✓	✓	✓		✓	✓
Celeriac			✓	✓	✓		✓	✓
Chervil			✓	✓	✓		✓	✓
Epazote					✓	✓	✓	✓
Galangal					✓	✓	✓	✓
Hellebore			✓	✓	✓		✓	✓
Jujube			✓	✓	✓		✓	✓
Malabar Spinach					✓	✓	✓	✓
New Zealand Spinach					✓	✓	✓	✓
Perilla					✓	✓	✓	✓
Romanesco			✓	✓	✓		✓	✓
Salsify			✓	✓	✓		✓	✓
Yacon					✓	✓	✓	✓

Hard (21) For experienced growers

Plant	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Garlic			✓	✓	✓		✓	✓
Eggplant					✓	✓	✓	✓
Watermelon					✓	✓	✓	✓
Corn					✓	✓	✓	✓
Cauliflower			✓	✓	✓		✓	✓
Celery					✓	✓	✓	✓
Artichoke			✓	✓	✓		✓	✓
Asparagus			✓	✓	✓		✓	✓
Avocado					✓	✓	✓	✓
Mango					✓	✓	✓	✓
Cardamom					✓	✓	✓	✓
Cinnamon					✓	✓	✓	✓
Vanilla					✓	✓	✓	✓
Orchid					✓	✓	✓	✓
Cacao					✓	✓	✓	✓
Jackfruit					✓	✓	✓	✓
Saffron			✓	✓	✓		✓	✓
Star Anise					✓	✓	✓	✓
Wasabi					✓	✓	✓	✓
Lychee					✓	✓	✓	✓
Ramps			✓	✓	✓		✓	✓

Plant Details

Basil

Herb · Full Sun · 50-75 days

Plant in: May, Jun, Jul, Aug

Lettuce

Vegetable · Partial Shade OK · 30-60 days

Plant in: Mar, Apr, May, Jul, Aug

Mint

Herb · Partial Shade OK · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Green Bean

Vegetable · Full Sun · 50-60 days

Plant in: May, Jun, Jul, Aug

Sunflower

Flower · Full Sun · 70-100 days

Plant in: May, Jun, Jul, Aug

Radish

Vegetable · Full Sun · 22-30 days

Plant in: Mar, Apr, May, Jul, Aug

Arugula

Vegetable · Full Sun to Partial Shade · 21-40 days

Plant in: Mar, Apr, May, Jul, Aug

Swiss Chard

Vegetable · Full Sun to Partial Shade · 50-60 days

Plant in: Mar, Apr, May, Jul, Aug

Green Onion

Vegetable · Full Sun · 20-30 days

Plant in: Mar, Apr, May, Jul, Aug

Marigold

Flower · Full Sun · 45-50 days

Plant in: May, Jun, Jul, Aug

Zinnia

Flower · Full Sun · 60-70 days

Plant in: May, Jun, Jul, Aug

Pansy

Flower · Full Sun to Partial Shade · 55-80 days

Plant in: Mar, Apr, May, Jul, Aug

Cosmos

Flower · Full Sun · 50-60 days

Plant in: May, Jun, Jul, Aug

Aloe Vera

Herb · Full Sun · 365-730 days

Plant in: May, Jun, Jul, Aug

Chive

Herb · Full Sun to Partial Shade · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Calendula

Flower · Full Sun · 45-65 days

Plant in: Mar, Apr, May, Jul, Aug

Catnip

Herb · Full Sun to Partial Shade · 60-80 days

Plant in: Mar, Apr, May, Jul, Aug

Clover

Herb · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Cress

Vegetable · Partial Shade OK · 7-14 days

Plant in: Mar, Apr, May, Jul, Aug

Dandelion

Vegetable · Full Sun to Partial Shade · 45-60 days

Plant in: Mar, Apr, May, Jul, Aug

Nasturtium

Flower · Full Sun to Partial Shade · 35-52 days

Plant in: May, Jun, Jul, Aug

Yarrow

Flower · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Borage

Herb · Full Sun · 50-60 days

Plant in: Mar, Apr, May, Jul, Aug

Mizuna

Vegetable · Full Sun to Partial Shade · 21-40 days

Plant in: Mar, Apr, May, Jul, Aug

Tatsoi

Vegetable · Full Sun to Partial Shade · 21-45 days

Plant in: Mar, Apr, May, Jul, Aug

Buckwheat

Grain · Full Sun · 30-45 days

Plant in: May, Jun, Jul, Aug

Tomato

Vegetable · Full Sun · 60-85 days

Plant in: May, Jun, Jul, Aug

Carrot

Vegetable · Full Sun · 70-80 days

Plant in: Mar, Apr, May, Jul, Aug

Pepper

Vegetable · Full Sun · 60-90 days

Plant in: May, Jun, Jul, Aug

Cucumber

Vegetable · Full Sun · 50-70 days

Plant in: May, Jun, Jul, Aug

Zucchini

Vegetable · Full Sun · 45-60 days

Plant in: May, Jun, Jul, Aug

Spinach

Vegetable · Partial Shade OK · 37-45 days

Plant in: Mar, Apr, May, Jul, Aug

Kale

Vegetable · Full Sun to Partial Shade · 55-75 days

Plant in: Mar, Apr, May, Jul, Aug

Rosemary

Herb · Full Sun · 80-120 days

Plant in: Mar, Apr, May, Jul, Aug

Cilantro

Herb · Full Sun to Partial Shade · 45-70 days

Plant in: Mar, Apr, May, Jul, Aug

Pea

Vegetable · Full Sun · 55-70 days

Plant in: Mar, Apr, May, Jul, Aug

Potato

Vegetable · Full Sun · 70-120 days

Plant in: May, Jun, Jul, Aug

Onion

Vegetable · Full Sun · 90-120 days

Plant in: Mar, Apr, May, Jul, Aug

Strawberry

Fruit · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Lavender

Herb · Full Sun · 90-200 days

Plant in: Mar, Apr, May, Jul, Aug

Chili Pepper

Vegetable · Full Sun · 60-120 days

Plant in: May, Jun, Jul, Aug

Sweet Potato

Vegetable · Full Sun · 90-170 days

Plant in: May, Jun, Jul, Aug

Thyme

Herb · Full Sun · 70-90 days

Plant in: Mar, Apr, May, Jul, Aug

Parsley

Herb · Full Sun to Partial Shade · 70-90 days

Plant in: Mar, Apr, May, Jul, Aug

Broccoli

Vegetable · Full Sun · 55-80 days

Plant in: Mar, Apr, May, Jul, Aug

Bok Choy

Vegetable · Partial Shade OK · 30-50 days

Plant in: Mar, Apr, May, Jul, Aug

Beet

Vegetable · Full Sun · 50-70 days

Plant in: Mar, Apr, May, Jul, Aug

Brussels Sprouts

Vegetable · Full Sun · 90-180 days

Plant in: Mar, Apr, May, Jul, Aug

Cabbage

Vegetable · Full Sun · 70-100 days

Plant in: Mar, Apr, May, Jul, Aug

Collard Greens

Vegetable · Full Sun · 55-75 days

Plant in: Mar, Apr, May, Jul, Aug

Dill

Herb · Full Sun · 40-60 days

Plant in: Mar, Apr, May, Jul, Aug

Fennel

Herb · Full Sun · 60-90 days

Plant in: May, Jun, Jul, Aug

Ginger

Herb · Partial Shade OK · 240-300 days

Plant in: May, Jun, Jul, Aug

Jalapeno

Vegetable · Full Sun · 70-80 days

Plant in: May, Jun, Jul, Aug

Kohlrabi

Vegetable · Full Sun · 45-60 days

Plant in: Mar, Apr, May, Jul, Aug

Leek

Vegetable · Full Sun · 90-120 days

Plant in: Mar, Apr, May, Jul, Aug

Lemongrass

Herb · Full Sun · 75-100 days

Plant in: May, Jun, Jul, Aug

Cantaloupe

Fruit · Full Sun · 80-100 days

Plant in: May, Jun, Jul, Aug

Mustard Greens

Vegetable · Full Sun to Partial Shade · 30-45 days

Plant in: Mar, Apr, May, Jul, Aug

Okra

Vegetable · Full Sun · 50-65 days

Plant in: May, Jun, Jul, Aug

Oregano

Herb · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Parsnip

Vegetable · Full Sun · 100-130 days

Plant in: Mar, Apr, May, Jul, Aug

Pumpkin

Vegetable · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Sage

Herb · Full Sun · 75-90 days

Plant in: Mar, Apr, May, Jul, Aug

Shallot

Vegetable · Full Sun · 90-120 days

Plant in: Mar, Apr, May, Jul, Aug

Snap Pea

Vegetable · Full Sun · 55-70 days

Plant in: Mar, Apr, May, Jul, Aug

Butternut Squash

Vegetable · Full Sun · 90-110 days

Plant in: May, Jun, Jul, Aug

Acorn Squash

Vegetable · Full Sun · 80-100 days

Plant in: May, Jun, Jul, Aug

Tomatillo

Vegetable · Full Sun · 60-80 days

Plant in: May, Jun, Jul, Aug

Turnip

Vegetable · Full Sun · 30-60 days

Plant in: Mar, Apr, May, Jul, Aug

Watercress

Vegetable · Partial Shade OK · 30-50 days

Plant in: Mar, Apr, May, Jul, Aug

Blackberry

Fruit · Full Sun · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Blueberry

Fruit · Full Sun · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Raspberry

Fruit · Full Sun · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Fig

Fruit · Full Sun · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Grape

Fruit · Full Sun · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Lemon

Fruit · Full Sun · 365-730 days

Plant in: May, Jun, Jul, Aug

Lime

Fruit · Full Sun · 365-730 days

Plant in: May, Jun, Jul, Aug

Papaya

Fruit · Full Sun · 270-365 days

Plant in: May, Jun, Jul, Aug

Passion Fruit

Fruit · Full Sun · 365-545 days

Plant in: May, Jun, Jul, Aug

Pineapple

Fruit · Full Sun · 545-730 days

Plant in: May, Jun, Jul, Aug

Banana

Fruit · Full Sun · 270-365 days

Plant in: May, Jun, Jul, Aug

Turmeric

Herb · Partial Shade OK · 240-300 days

Plant in: May, Jun, Jul, Aug

Chamomile

Flower · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Dahlia

Flower · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Petunia

Flower · Full Sun · 55-70 days

Plant in: May, Jun, Jul, Aug

Snapdragon

Flower · Full Sun · 70-90 days

Plant in: Mar, Apr, May, Jul, Aug

Sweet Pea Flower

Flower · Full Sun · 55-70 days

Plant in: Mar, Apr, May, Jul, Aug

Morning Glory

Flower · Full Sun · 60-90 days

Plant in: May, Jun, Jul, Aug

Chrysanthemum

Flower · Full Sun · 70-100 days

Plant in: Mar, Apr, May, Jul, Aug

Rose

Flower · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Jasmine

Flower · Full Sun to Partial Shade · 90-180 days

Plant in: May, Jun, Jul, Aug

Hibiscus

Flower · Full Sun · 90-180 days

Plant in: May, Jun, Jul, Aug

Bamboo

Herb · Full Sun to Partial Shade · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Lemon Balm

Herb · Full Sun to Partial Shade · 60-70 days

Plant in: Mar, Apr, May, Jul, Aug

Stevia

Herb · Full Sun · 60-90 days

Plant in: May, Jun, Jul, Aug

Tarragon

Herb · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Amaranth

Grain · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Anise

Herb · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Bay Laurel

Herb · Full Sun to Partial Shade · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Black-Eyed Pea

Vegetable · Full Sun · 60-90 days

Plant in: May, Jun, Jul, Aug

Boysenberry

Fruit · Full Sun · 365-545 days

Plant in: Mar, Apr, May, Jul, Aug

Broccolini

Vegetable · Full Sun · 50-65 days

Plant in: Mar, Apr, May, Jul, Aug

Cayenne Pepper

Spice · Full Sun · 70-100 days

Plant in: May, Jun, Jul, Aug

Chickpea

Grain · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Chicory

Vegetable · Full Sun · 60-120 days

Plant in: Mar, Apr, May, Jul, Aug

Chinese Cabbage

Vegetable · Full Sun to Partial Shade · 50-70 days

Plant in: Mar, Apr, May, Jul, Aug

Coffee Plant

Fruit · Partial Shade OK · 1095-1460 days

Plant in: May, Jun, Jul, Aug

Comfrey

Herb · Full Sun to Partial Shade · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Curry Leaf

Herb · Full Sun · 365-730 days

Plant in: May, Jun, Jul, Aug

Dragon Fruit

Fruit · Full Sun · 365-730 days

Plant in: May, Jun, Jul, Aug

Edamame

Vegetable · Full Sun · 80-100 days

Plant in: May, Jun, Jul, Aug

Elderberry

Fruit · Full Sun to Partial Shade · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Endive

Vegetable · Full Sun to Partial Shade · 45-85 days

Plant in: Mar, Apr, May, Jul, Aug

Fenugreek

Herb · Full Sun · 60-90 days

Plant in: May, Jun, Jul, Aug

Foxglove

Flower · Partial Shade OK · 365-545 days

Plant in: Mar, Apr, May, Jul, Aug

Freesia

Flower · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Goji Berry

Fruit · Full Sun · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Gooseberry

Fruit · Full Sun to Partial Shade · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Habanero

Spice · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Hops

Herb · Full Sun · 120-150 days

Plant in: Mar, Apr, May, Jul, Aug

Horseradish

Vegetable · Full Sun to Partial Shade · 140-160 days

Plant in: Mar, Apr, May, Jul, Aug

Hyssop

Herb · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Jicama

Vegetable · Full Sun · 120-180 days

Plant in: May, Jun, Jul, Aug

Kiwi

Fruit · Full Sun · 730-1460 days

Plant in: Mar, Apr, May, Jul, Aug

Kumquat

Fruit · Full Sun · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Lentil

Grain · Full Sun · 80-110 days

Plant in: May, Jun, Jul, Aug

Lilac

Flower · Full Sun · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Luffa

Vegetable · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Lupine

Flower · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Marjoram

Herb · Full Sun · 60-80 days

Plant in: May, Jun, Jul, Aug

Millet

Grain · Full Sun · 60-90 days

Plant in: May, Jun, Jul, Aug

Moringa

Vegetable · Full Sun · 90-180 days

Plant in: May, Jun, Jul, Aug

Mulberry

Fruit · Full Sun · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Nectarine

Fruit · Full Sun · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Nigella

Flower · Full Sun · 60-75 days

Plant in: Mar, Apr, May, Jul, Aug

Olive

Fruit · Full Sun · 1095-1825 days

Plant in: Mar, Apr, May, Jul, Aug

Peach

Fruit · Full Sun · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Pear

Fruit · Full Sun · 730-1460 days

Plant in: Mar, Apr, May, Jul, Aug

Pennyroyal

Herb · Full Sun to Partial Shade · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Persimmon

Fruit · Full Sun · 730-1460 days

Plant in: Mar, Apr, May, Jul, Aug

Plum

Fruit · Full Sun · 730-1460 days

Plant in: Mar, Apr, May, Jul, Aug

Pomegranate

Fruit · Full Sun · 730-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Poppy

Flower · Full Sun · 55-80 days

Plant in: Mar, Apr, May, Jul, Aug

Quinoa

Grain · Full Sun · 90-120 days

Plant in: Mar, Apr, May, Jul, Aug

Radicchio

Vegetable · Full Sun to Partial Shade · 60-80 days

Plant in: Mar, Apr, May, Jul, Aug

Rhubarb

Vegetable · Full Sun to Partial Shade · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Rutabaga

Vegetable · Full Sun · 80-100 days

Plant in: Mar, Apr, May, Jul, Aug

Savory

Herb · Full Sun · 60-80 days

Plant in: Mar, Apr, May, Jul, Aug

Sesame

Grain · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Sorghum

Grain · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Sorrel

Herb · Full Sun to Partial Shade · 40-60 days

Plant in: Mar, Apr, May, Jul, Aug

Soybean

Grain · Full Sun · 80-120 days

Plant in: May, Jun, Jul, Aug

Star Fruit

Fruit · Full Sun · 730-1460 days

Plant in: May, Jun, Jul, Aug

Sweet Corn

Vegetable · Full Sun · 60-100 days

Plant in: May, Jun, Jul, Aug

Taro

Vegetable · Partial Shade OK · 180-240 days

Plant in: May, Jun, Jul, Aug

Tea Plant

Herb · Partial Shade OK · 1095-1825 days

Plant in: Mar, Apr, May, Jul, Aug

Tiger Lily

Flower · Full Sun to Partial Shade · 90-120 days

Plant in: Mar, Apr, May, Jul, Aug

Tulip

Flower · Full Sun · 90-150 days

Plant in: Mar, Apr, May, Jul, Aug

Winter Squash

Vegetable · Full Sun · 80-110 days

Plant in: May, Jun, Jul, Aug

Yam

Vegetable · Full Sun · 180-365 days

Plant in: May, Jun, Jul, Aug

Chia

Grain · Full Sun · 90-120 days

Plant in: May, Jun, Jul, Aug

Cranberry

Fruit · Full Sun · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Flax

Grain · Full Sun · 90-110 days

Plant in: Mar, Apr, May, Jul, Aug

Guava

Fruit · Full Sun · 365-730 days

Plant in: May, Jun, Jul, Aug

Lovage

Herb · Full Sun to Partial Shade · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Passion Flower

Flower · Full Sun · 90-180 days

Plant in: Mar, Apr, May, Jul, Aug

Physalis

Fruit · Full Sun · 70-90 days

Plant in: May, Jun, Jul, Aug

Sweet Woodruff

Herb · Partial Shade OK · 365-545 days

Plant in: Mar, Apr, May, Jul, Aug

Verbena

Flower · Full Sun · 60-90 days

Plant in: Mar, Apr, May, Jul, Aug

Waterlily

Flower · Full Sun · 90-180 days

Plant in: May, Jun, Jul, Aug

Wisteria

Flower · Full Sun · 730-1825 days

Plant in: Mar, Apr, May, Jul, Aug

Wintergreen

Herb · Partial Shade OK · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Black Currant

Fruit · Full Sun to Partial Shade · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Celeriac

Vegetable · Full Sun · 100-120 days

Plant in: Mar, Apr, May, Jul, Aug

Chervil

Herb · Partial Shade OK · 40-60 days

Plant in: Mar, Apr, May, Jul, Aug

Epazote

Herb · Full Sun · 45-60 days

Plant in: May, Jun, Jul, Aug

Galangal

Spice · Partial Shade OK · 240-365 days

Plant in: May, Jun, Jul, Aug

Hellebore

Flower · Partial Shade OK · 365-730 days

Plant in: Mar, Apr, May, Jul, Aug

Jujube

Fruit · Full Sun · 730-1460 days

Plant in: Mar, Apr, May, Jul, Aug

Malabar Spinach

Vegetable · Full Sun · 50-70 days

Plant in: May, Jun, Jul, Aug

New Zealand Spinach

Vegetable · Full Sun to Partial Shade · 55-70 days

Plant in: May, Jun, Jul, Aug

Perilla

Herb · Full Sun to Partial Shade · 50-70 days

Plant in: May, Jun, Jul, Aug

Romanesco

Vegetable · Full Sun · 75-100 days

Plant in: Mar, Apr, May, Jul, Aug

Salsify

Vegetable · Full Sun · 100-150 days

Plant in: Mar, Apr, May, Jul, Aug

Yacon

Vegetable · Full Sun · 180-240 days

Plant in: May, Jun, Jul, Aug

Garlic

Vegetable · Full Sun · 240-270 days

Plant in: Mar, Apr, May, Jul, Aug

Eggplant

Vegetable · Full Sun · 65-80 days

Plant in: May, Jun, Jul, Aug

Watermelon

Fruit · Full Sun · 70-90 days

Plant in: May, Jun, Jul, Aug

Corn

Vegetable · Full Sun · 60-100 days

Plant in: May, Jun, Jul, Aug

Cauliflower

Vegetable · Full Sun · 55-100 days

Plant in: Mar, Apr, May, Jul, Aug

Celery

Vegetable · Full Sun · 85-120 days

Plant in: May, Jun, Jul, Aug

Artichoke

Vegetable · Full Sun · 150-180 days

Plant in: Mar, Apr, May, Jul, Aug

Asparagus

Vegetable · Full Sun · 730-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Avocado

Fruit · Full Sun · 1095-1825 days

Plant in: May, Jun, Jul, Aug

Mango

Fruit · Full Sun · 1095-1825 days

Plant in: May, Jun, Jul, Aug

Cardamom

Herb · Partial Shade OK · 730-1095 days

Plant in: May, Jun, Jul, Aug

Cinnamon

Herb · Full Sun · 730-1095 days

Plant in: May, Jun, Jul, Aug

Vanilla

Herb · Partial Shade OK · 1095-1825 days

Plant in: May, Jun, Jul, Aug

Orchid

Flower · Partial Shade OK · 365-730 days

Plant in: May, Jun, Jul, Aug

Cacao

Fruit · Partial Shade OK · 1095-1825 days

Plant in: May, Jun, Jul, Aug

Jackfruit

Fruit · Full Sun · 1095-1825 days

Plant in: May, Jun, Jul, Aug

Saffron

Spice · Full Sun · 45-60 days

Plant in: Mar, Apr, May, Jul, Aug

Star Anise

Spice · Full Sun to Partial Shade · 1825-2555 days

Plant in: May, Jun, Jul, Aug

Wasabi

Spice · Partial Shade OK · 545-730 days

Plant in: May, Jun, Jul, Aug

Lychee

Fruit · Full Sun · 1825-3650 days

Plant in: May, Jun, Jul, Aug

Ramps

Vegetable · Partial Shade OK · 365-1095 days

Plant in: Mar, Apr, May, Jul, Aug

Nearby Cities

Toronto

CA · Zone 4

207 crops

Vancouver

CA · Zone 6

207 crops

Montreal

CA · Zone 1

207 crops

Calgary

CA · Zone 1

207 crops

New York

US · Zone 5

207 crops

Los Angeles

US · Zone 9

207 crops

Frequently Asked Questions about Gardening in Ottawa

When should I plant tomatoes in Ottawa?

In Ottawa (USDA Zone 1), the best months to plant tomatoes are May, June, July, August. The difficulty level is medium. Ottawa has 165 frost-free days, which may be tight but is sufficient for tomatoes to reach harvest.

What grows best in Ottawa?

Ottawa (Warm-summer humid continental climate, USDA Zone 1) can successfully grow 207 out of 207 plants in our database. The easiest plants to grow here are Lettuce, Mint, Radish, Arugula, Swiss Chard. With 165 frost-free days and annual rainfall of 920mm, Ottawa is excellent for home gardening.

What is the growing season in Ottawa?

Ottawa has approximately 165 frost-free days per year, with winter lows around -15°C and summer highs reaching 27°C. The annual rainfall is 920mm. In Ottawa's Warm-summer humid continental climate (Köppen Dfb), most vegetables and herbs can be planted during the warmer months from late spring to early fall.

Keep Exploring

Save to My Garden

Track your plants and get personalized planting reminders

Companion Planting

Learn which plants grow best together

Indoor Growing

Grow herbs and greens indoors year-round

Gardening Blog

Expert tips, seasonal guides, and how-to articles

Related Searches

People also search for:

March planting in Ottawa April planting in Ottawa Companion planting guide Indoor growing guides Best plants for beginners Container gardening

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

Share: X Facebook Pinterest WhatsApp

See an error? Report it