Garden Bed Math

Back to the system

Garden Bed Math · Bulb planting map

My bulb planting map

Zip code: Station: USDA zone: Bed inside size: Bulb kinds:

#StepDoneDate
1Look up first fall frost: 1 in 10 and typical
2Bulbs ordered in August or September, kept cool
3Bed measured inside the boards
4Bulb count from the calculator
5Daffodils and small bulbs planted in the window
6Holes: 6 to 8 in large, 3 to 4 in small
7Sandy soil 1 to 2 in deeper, clay 1 to 2 in shallower
8Half the soil back, soaked, rest of the soil
9Tulips planted last, while the soil can be dug
10Watered weekly in a dry fall
112 to 3 in of mulch; small early bulbs left bare
12Groups labeled; spring bloom dates written down

Notes:

Source: University of Minnesota Extension, Planting bulbs, tubers and rhizomes, checked October 9, 2026. Planning record, not a guarantee. Dates are extension advice and NOAA 1991 to 2020 normals; any year can differ. · gardenbedmath.com/zones/spring-bulbs-zones-3-5/