When to Plant Swiss Chard in Houston, Texas (77081)

Location

Houston, Texas

ZIP Code

77081

USDA Zone

Last Frost

Tuesday, February 10, 2026

📅 Planting Calendar

Direct Sow Outdoors Tuesday, January 13, 2026

Pro Tip: Sow Swiss Chard directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Beta vulgaris subsp. vulgaris

Days to Maturity 55 days

Mature Height 18-24"

Spread 12"

Type Leaf

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-1.5 inches/week)

↔️

Spacing

8" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 5-10 days

Ready to Plant Swiss Chard in Houston?

Get your seeds now so they're ready by Tuesday, January 13, 2026.

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🤝 Good Companions

BeetOnionBeanCabbage

⚠️ Avoid Planting Near

LeekCorn

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Growing Swiss Chard in Zone 9b

Swiss Chard (Beta vulgaris subsp. vulgaris) is a popular garden vegetable. In Houston, Texas, which is in USDA Hardiness Zone 9b, you should direct sow seeds around Tuesday, January 13, 2026.

Your average last frost date is Tuesday, February 10, 2026. Swiss Chard grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.