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Growing Lemongrass in Spokane

🇺🇸 Zone 3 Planting Guide · Cold semi-arid climate

USDA Zone 3 155 frost-free days 75-100 days to harvest

Quick Answer: Growing Lemongrass in Spokane

Yes, you can grow Lemongrass in Spokane, US! Plant during May, Jun, Jul, Aug for best results. Spokane is in USDA Zone 3 with a Cold semi-arid climate, offering 155 frost-free days per year. The difficulty level is medium, and Lemongrass takes 75-100 days to harvest. Lemongrass needs full sun and regular watering.

Climate Match Analysis

Moderate Match Spokane + Lemongrass

Spokane's climate requires careful timing. Winter lows (-8°C) drop below Lemongrass's minimum (15°C), so avoid cold months. Follow the recommended planting months for success.

Lemongrass tolerates 15°C to 38°C
Optimal: 22°C - 32°C
Spokane range -8°C to 30°C

Spokane Climate Data

USDA Zone
3
Frost-Free
155days
Winter Low
-8°C
Summer High
30°C
Rainfall
432mm/yr
Climate
BSk
Cold semi-arid

Lemongrass Planting Calendar for Spokane

Green months show the best time to plant Lemongrass in Spokane

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

Lemongrass Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

75-100

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Lemongrass

Root store-bought stalks in water. Bring indoors before frost. Wait until soil warms to at least 22°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Frost tolerance: Lemongrass is NOT frost tolerant — wait until after the last frost in Spokane.

How to Grow Lemongrass in Spokane

Spokane, US is in USDA Hardiness Zone 3 with a Cold semi-arid climate (Köppen BSk). With winter lows of -8°C and summer highs of 30°C, the growing season spans approximately 155 frost-free days. Lemongrass grows well with some gardening knowledge in this climate.

Lemongrass thrives in temperatures between 22°C and 32°C, requiring full sun and regular watering. In Spokane, the best months to plant Lemongrass are May, June, July, August. Lemongrass is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 75-100 days after planting.

Spokane receives only 432mm of annual rainfall, so consistent irrigation will be essential for growing Lemongrass successfully.

Other Plants That Grow in Spokane

More plants you can grow alongside Lemongrass in Spokane

Keep Exploring

Frequently Asked Questions

Can I grow lemongrass in Spokane?

Yes! Lemongrass can be successfully grown in Spokane, US. Spokane is in USDA Hardiness Zone 3 with a Cold semi-arid climate. The difficulty level for growing Lemongrass here is rated "medium". The best months to plant are May, June, July, August.

When should I plant lemongrass in Spokane?

In Spokane, the recommended planting months for Lemongrass are May, June, July, August. Spokane has 155 frost-free days per year, with winter lows of -8°C and summer highs of 30°C. Since Lemongrass is not frost tolerant, make sure to plant after the last frost date.

How long does lemongrass take to grow in Spokane?

Lemongrass typically takes 75-100 days from planting to harvest. In Spokane's Cold semi-arid climate with 155 frost-free days, you have enough time with good planning to grow Lemongrass to maturity. Root store-bought stalks in water. Bring indoors before frost. Wait until soil warms to at least 22°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Can I grow lemongrass indoors in Spokane?

Lemongrass can potentially be grown indoors in Spokane 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 May, Jun, Jul, Aug outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant lemongrass in Spokane?

Plant Lemongrass in Spokane during May, June, July, August. These are the optimal months based on Spokane's USDA Zone 3 climate, 155 frost-free days, and temperature range of -8°C to 30°C.

Is lemongrass hard to grow in Spokane?

Lemongrass is rated "medium" to grow in Spokane. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Lemongrass in Spokane is Moderate.

What grows well with lemongrass in Spokane?

In Spokane, you can grow many companion plants alongside Lemongrass. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Spokane's Zone 3 climate.

Does lemongrass need full sun in Spokane?

Lemongrass requires full sun. In Spokane, 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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