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How Many Bulbs Do You Need?

By: Garden Gate staff
Plug the square footage of your border into our bulb calculator and you'll know how many bulbs you need to buy to create a gorgeous spring border.

Bulb-calculator-hyacinth: Find out how many grape hyacinth bulbs you’ll need with the calculator below.

Bulb calculator

Wondering how many bulbs to buy? Find out with our bulb calculator. Calculate the size of your garden bed here first. Then add that number to the "Square feet" box below. Click "Calculate Bulb Counts for My Bed", check the chart and you’ll see how many bulbs you need to buy for different types of flowers. Each result lists a range of bulbs so you can choose to plant loosely with less bulbs to show off each specimen or pack them in tight for a big block of color.

Bulb planting tips

  • Ensure a beautiful show by planting bulbs at the proper depth — usually three times the height of the bulb is just fine.
  • Also, if you’re packing them in tight keep bulbs close but not touching. That way if one rots it’s less likely to spread to its neighbors.
  • Tools like a bulb auger or hand bulb planter make planting easier.

Enter Your Garden Bed Size Below

Add the size of your garden in square feet above, then click the "Calculate Bulb Counts For My Bed" button to populate chart results below.

Plant name Botanical name No. of bulbs
per square ft.
No. of bulbs
for my bed
Crocus Crocus spp. and hybrids 10 to 15
Crown imperial Fritillaria imperialis 1 to 4
Daffodil (large) Narcissus spp. and hybrids 4 to 5
Daffodil (small) Narcissus spp. and hybrids 5 to 10
Grape hyacinth Muscari spp. and hybrids 10 to 15
Greek windflower Anemone blanda 10 to 15
Hyacinth Hyacinthus orientalis 4 to 6
Siberian squill Scilla siberica 9 to 15
Tulip (large) Tulipa hybrids 4 to 5
Tulip (small) Tulipa hybrids 5 to 10

You Might Also Like:
Best Places to Buy Bulbs Online
How to Buy the Best Bulbs
Bulbs for Gardeners in Every Region
Grow Your Best Tulips

Published: Aug. 31, 2018

Product Recommendations

Here are some supplies and tools we find essential in our everyday work in the garden. We may receive a commission from sales referred by our links; however, we have carefully selected these products for their usefulness and quality.

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Related Tags

bulbs fall garden design how to spring

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