When to Plant Broccoli in Sunnyside, Utah (84539)

Location

Sunnyside, Utah

ZIP Code

84539

USDA Zone

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Start Seeds Indoors Wednesday, March 4, 2026

Transplant Outdoors Wednesday, April 15, 2026

Pro Tip: Start Broccoli seeds indoors 6 weeks before your last frost date, then transplant outdoors around Wednesday, April 15, 2026.

🌿 Plant Details

Scientific Name Brassica oleracea var. italica

Days to Maturity 60 days

Mature Height 18-30"

Spread 18"

Type Head

Fruit Size Medium (4-7 inch head)

☀️ Growing Requirements

☀️

Sun

Full Sun (6 hours)

💧

Water

Regular (1-1.5 inches/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 4-7 days

Ready to Plant Broccoli in Sunnyside?

Get your seeds now so they're ready by Wednesday, March 4, 2026.

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🤝 Good Companions

BeetCeleryOnionPotatoDill

⚠️ Avoid Planting Near

TomatoStrawberryPepper

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Growing Broccoli in Zone 6b

Broccoli (Brassica oleracea var. italica) is a popular garden vegetable. In Sunnyside, Utah, which is in USDA Hardiness Zone 6b, you should start seeds indoors around Wednesday, March 4, 2026.

Your average last frost date is Wednesday, April 15, 2026. Plan to transplant your Broccoli seedlings outdoors around Wednesday, April 15, 2026, about 0 weeks after your last frost date.