When to Plant Alliums in Daggett County, UT
Ornamental alliums (Allium spp.) bridge the gap between spring and summer with their striking globe-shaped flower heads in shades of purple, violet, white, and pink. Blooming after tulips have faded, they extend the spring display well into early summer. 'Gladiator', 'Globemaster', and 'Purple Sensation' produce softball-sized heads on 18–36 inch stems, while smaller species create charming accents at border fronts. Deer and rodents shun them completely due to the characteristic onion scent. Dried seed heads provide architectural interest into fall.
Daggett County, Utah is in USDA Zone 5b. The average last spring frost is May 13 and the first fall frost is October 1, giving you a growing season of approximately 141 days.
At an elevation of 7,540 feet, Daggett County receives approximately 14.6 inches of rainfall annually with predominantly loam soil. Summer highs average 82°F, so choose short-season varieties of Alliums to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Alliums successfully. Mulch heavily to conserve soil moisture.
Daggett County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Alliums Planting Timeline — Daggett County, UT
Alliums Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Bloom | September 24 | Sep 24 – Oct 15 |
| Fall Sowing | August 20 | Aug 20 – Sep 3 |
Plant 5" deep · 7" apart · Rows 8" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | Fall Sowing |
| September | Fall Sowing Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
28–42 days
🧪 Soil pH
Needs 5.5–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5b
📆 Growing Season
141 days in Daggett County
Growing Tips for Daggett County
Plant bulbs in fall, 3–4 times as deep as the bulb diameter (typically 4–6 inches for large types, 3 inches for small species). Space 6–8 inches apart for standard cultivars. Foliage often looks untidy as it dies back before bloom — plant around perennials that will conceal the yellowing leaves. Excellent drainage is essential; alliums rot in wet soils. Leave bulbs in place for naturalization; divide every 3–4 years when clusters become congested. Deadhead spent globes or leave for ornamental seedheads and self-sowing.
Companion Planting
Good Companions
Avoid Planting Near
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Alliums in Other Locations
Frequently Asked Questions
When should I plant Alliums in Daggett County, UT?
Daggett County is in Zone 5b with an average last frost of May 13. Plan your Alliums planting based on this frost date — see the calendar above for exact timing.
What planting zone is Daggett County, UT?
Daggett County, Utah is in USDA Hardiness Zone 5b. The average last spring frost is May 13 and first fall frost is October 1.
Your Daggett County Garden Planner — Free
A 22-page printable planner built for Daggett County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.