Spring bulbs — tulips, daffodils, crocus — print version.
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SUS Farms · Utah Gardening
Spring bulbs — tulips, daffodils, crocus
design · beginner · ~4 min read
October is when you plant for April. Tulips, daffodils, crocus, hyacinth, and alliums all need a 12–14 week chill period to bloom — Utah winters provide that for free. Skip the chill (try to plant in spring) and bulbs sit dormant or rot. Get the timing right and these are the easiest perennials in the yard.
When to plant
Plant when soil temperature drops below 55°F for two consecutive weeks. In Utah that's mid-October to mid-November depending on elevation. Bulbs need 6 weeks of root growth before hard freeze, so don't wait until December.
How deep
Rule of thumb: plant the bulb 3× as deep as it is tall. Tulip bulb 2 inches tall → 6 inch hole. Daffodil bulb 3 inches tall → 8–9 inch hole. Crocus 1 inch → 3 inch hole. Pointy end up, roots down. Plant in clusters of 5–7 of the same variety, not single straight lines.
Daffodils naturalize, tulips don't
Daffodils are a 50-year investment — plant once, multiply over decades. Tulips are basically 3-year annuals at our latitude — bloom strong year 1, weaker year 2, mostly leaves year 3. If you want long-term tulips, replant every 2 years. For low-maintenance perennial color, lean heavy on daffodils.
Critter problems
Squirrels and voles eat tulip bulbs. They DON'T eat daffodils, alliums, or crocus (toxic). If you have rodents, plant a "guard ring" of daffodils around your tulips — buys some protection. Steel mesh cages work too but are tedious.
Foliage care after bloom
Don't cut bulb foliage until it yellows naturally — usually 6 weeks after bloom. The leaves are recharging the bulb for next year. Braiding or rubber-banding leaves cuts the recharge by 30%. Plant late-emerging perennials (hosta, daylilies) around bulbs to hide the dying foliage.