DibbleWhen to plant tulips in Zone 9
In Zone 9, the last spring frost usually passes around March 1 and the first fall frost arrives around December 1, leaving about 275 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Very long season. Plant cool crops in fall and winter; manage summer heat.
Planting windows for tulips in Zone 9
| Task | Window |
|---|---|
| Plant bulbs | Nov 24 to Dec 8 |
| Estimated harvest | Mar 24 to Apr 14 |
The harvest estimate counts 120 days to maturity, then a picking window of about 21 days. These windows use typical frost dates for Zone 9; Dibble pins them to your exact ZIP code.
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Tulip in a Zone 9 season
Zone 9 gives about 275 frost-free days. Tulip needs roughly 120 days from planting. That leaves about 155 days of slack, so there is room for a late start or a second planting.
How to grow tulips
Plant bulbs pointy end up once the soil has cooled in autumn, early enough to root before any hard freeze. Where winters stay mild, buy pre-chilled bulbs and plant at the start of the cool season. They bloom as the weather warms.
Companion plants
Good neighbors for Tulip:
Tulip in other zones
Not in Zone 9? Pick your zone for the same dated windows.
Keep exploring
Tulip: the full growing guide · The Zone 9 planting calendar · Every crop and zone
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.