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When to Plant Swiss Chard in Canadian, Oklahoma (74425)

Location

Canadian, Oklahoma

ZIP Code

74425

USDA Zone

7b

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, March 8, 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 Canadian?

Get your seeds now so they're ready by Sunday, March 8, 2026.

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🤝 Good Companions

BeetOnionBeanCabbage

⚠️ Avoid Planting Near

LeekCorn

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Growing Swiss Chard in Zone 7b

Swiss Chard (Beta vulgaris subsp. vulgaris) is a popular garden vegetable. In Canadian, Oklahoma, which is in USDA Hardiness Zone 7b, you should direct sow seeds around Sunday, March 8, 2026.

Your average last frost date is Sunday, April 5, 2026. Swiss Chard grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.