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Growing Clover in St. Louis

🇺🇸 Zone 4 Planting Guide · Humid subtropical climate

USDA Zone 4 210 frost-free days 60-90 days to harvest

Quick Answer: Growing Clover in St. Louis

Yes, you can grow Clover in St. Louis, US! Plant during Feb, Mar, Apr, Aug, Sep for best results. St. Louis is in USDA Zone 4 with a Humid subtropical climate, offering 210 frost-free days per year. The difficulty level is easy, and Clover takes 60-90 days to harvest. Clover needs full sun and moderate watering.

Climate Match Analysis

Moderate Match St. Louis + Clover

St. Louis's climate requires careful timing. Summer highs (32°C) exceed Clover's maximum (30°C), so plant early or provide shade. Follow the recommended planting months for success.

Clover tolerates -15°C to 30°C
Optimal: 10°C - 22°C
St. Louis range -6°C to 32°C

St. Louis Climate Data

USDA Zone
4
Frost-Free
210days
Winter Low
-6°C
Summer High
32°C
Rainfall
1016mm/yr
Climate
Cfa
Humid subtropical

Clover Planting Calendar for St. Louis

Green months show the best time to plant Clover in St. Louis

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

Clover Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Moderate

Keep soil consistently moist

📅

Days to Harvest

60-90

From planting to first harvest

📊

Difficulty

easy

Great for beginners

💡 Growing Tips for Clover

Excellent green manure. Attracts pollinators. 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: Clover is frost tolerant — you can plant earlier in spring.

How to Grow Clover in St. Louis

St. Louis, US is in USDA Hardiness Zone 4 with a Humid subtropical climate (Köppen Cfa). With winter lows of -6°C and summer highs of 32°C, the growing season spans approximately 210 frost-free days. Clover is one of the easiest plants to grow in this climate.

Clover thrives in temperatures between 10°C and 22°C, requiring full sun and moderate watering. In St. Louis, the best months to plant Clover are February, March, April, August, September. Since Clover can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 60-90 days after planting.

St. Louis receives 1016mm of annual rainfall, which provides good natural moisture for Clover. Monitor soil moisture and water as needed.

Other Plants That Grow in St. Louis

More plants you can grow alongside Clover in St. Louis

Keep Exploring

Frequently Asked Questions

Can I grow clover in St. Louis?

Yes! Clover can be successfully grown in St. Louis, US. St. Louis is in USDA Hardiness Zone 4 with a Humid subtropical climate. The difficulty level for growing Clover here is rated "easy". The best months to plant are February, March, April, August, September.

When should I plant clover in St. Louis?

In St. Louis, the recommended planting months for Clover are February, March, April, August, September. St. Louis has 210 frost-free days per year, with winter lows of -6°C and summer highs of 32°C. Clover is frost tolerant, giving you more flexibility with planting dates.

How long does clover take to grow in St. Louis?

Clover typically takes 60-90 days from planting to harvest. In St. Louis's Humid subtropical climate with 210 frost-free days, you have plenty of time to grow Clover to maturity. Excellent green manure. Attracts pollinators. 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 clover indoors in St. Louis?

Clover can potentially be grown indoors in St. Louis 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 Feb, Mar, Apr, Aug, Sep outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant clover in St. Louis?

Plant Clover in St. Louis during February, March, April, August, September. These are the optimal months based on St. Louis's USDA Zone 4 climate, 210 frost-free days, and temperature range of -6°C to 32°C.

Is clover hard to grow in St. Louis?

Clover is rated "easy" to grow in St. Louis. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Clover in St. Louis is Moderate.

What grows well with clover in St. Louis?

In St. Louis, you can grow many companion plants alongside Clover. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in St. Louis's Zone 4 climate.

Does clover need full sun in St. Louis?

Clover requires full sun. In St. Louis, 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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