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🌿 Herb medium

Growing Dill in San Francisco

🇺🇸 Zone 9 Planting Guide · Warm-summer Mediterranean climate

USDA Zone 9 355 frost-free days 40-60 days to harvest

Quick Answer: Growing Dill in San Francisco

Yes, you can grow Dill in San Francisco, US! Plant during Oct, Nov for best results. San Francisco is in USDA Zone 9 with a Warm-summer Mediterranean climate, offering 355 frost-free days per year. The difficulty level is medium, and Dill takes 40-60 days to harvest. Dill needs full sun and moderate watering.

Climate Match Analysis

Good Match San Francisco + Dill

San Francisco's temperatures (8°C to 22°C) are within the tolerable range for Dill (2°C to 28°C), though not always in the optimal zone (12°C to 22°C). Plant during recommended months for best results.

Dill tolerates 2°C to 28°C
Optimal: 12°C - 22°C
San Francisco range 8°C to 22°C

San Francisco Climate Data

USDA Zone
9
Frost-Free
355days
Winter Low
8°C
Summer High
22°C
Rainfall
600mm/yr
Climate
Csb
Warm-summer Mediterranean

Dill Planting Calendar for San Francisco

Green months show the best time to plant Dill in San Francisco

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant Dill Not recommended

Dill Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

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Water

Moderate

Keep soil consistently moist

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Days to Harvest

40-60

From planting to first harvest

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Difficulty

medium

Some experience helpful

💡 Growing Tips for Dill

Sow directly -- doesn't transplant well. Self-seeds freely. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Frost tolerance: Dill is frost tolerant — you can plant earlier in spring.

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Companion Plants for Dill

Find out which plants grow best alongside Dill — and which to keep apart

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Grow Dill Indoors

No garden? Learn how to grow Dill indoors with our complete guide

How to Grow Dill in San Francisco

San Francisco, US is in USDA Hardiness Zone 9 with a Warm-summer Mediterranean climate (Köppen Csb). With winter lows of 8°C and summer highs of 22°C, the growing season spans approximately 355 frost-free days. Dill grows well with some gardening knowledge in this climate.

Dill thrives in temperatures between 12°C and 22°C, requiring full sun and moderate watering. In San Francisco, the best months to plant Dill are October, November. Since Dill can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 40-60 days after planting.

With 600mm of annual rainfall, San Francisco provides moderate natural moisture. This should be adequate for Dill's water needs.

Other Plants That Grow in San Francisco

More plants you can grow alongside Dill in San Francisco

Keep Exploring

Frequently Asked Questions

Can I grow dill in San Francisco?

Yes! Dill can be successfully grown in San Francisco, US. San Francisco is in USDA Hardiness Zone 9 with a Warm-summer Mediterranean climate. The difficulty level for growing Dill here is rated "medium". The best months to plant are October, November.

When should I plant dill in San Francisco?

In San Francisco, the recommended planting months for Dill are October, November. San Francisco has 355 frost-free days per year, with winter lows of 8°C and summer highs of 22°C. Dill is frost tolerant, giving you more flexibility with planting dates.

How long does dill take to grow in San Francisco?

Dill typically takes 40-60 days from planting to harvest. In San Francisco's Warm-summer Mediterranean climate with 355 frost-free days, you have plenty of time to grow Dill to maturity. Sow directly -- doesn't transplant well. Self-seeds freely. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Can I grow dill indoors in San Francisco?

Dill can potentially be grown indoors in San Francisco with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Oct, Nov outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant dill in San Francisco?

Plant Dill in San Francisco during October, November. These are the optimal months based on San Francisco's USDA Zone 9 climate, 355 frost-free days, and temperature range of 8°C to 22°C.

Is dill hard to grow in San Francisco?

Dill is rated "medium" to grow in San Francisco. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Dill in San Francisco is Good.

What grows well with dill in San Francisco?

In San Francisco, you can grow many companion plants alongside Dill. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in San Francisco's Zone 9 climate.

Does dill need full sun in San Francisco?

Dill requires full sun. In San Francisco, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

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

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