Daffodil bulbs should be planted at a depth about twice to three times the height of the bulb, which generally translates to about 4 to 7 inches (10 to 15 cm) below the soil surface. This depth helps ensure good flowering and prevents the bulbs from becoming "blind" (producing leaves but no flowers) or being disturbed by temperature fluctuations or pests
. Key planting guidelines:
- Plant bulbs with the pointed end facing upwards.
- Space bulbs 4 to 8 inches apart for standard varieties; miniature daffodils can be planted 3 to 5 inches apart
- In pots, bulbs can be planted closer together but should not touch each other or the sides of the container
- Loosen soil to at least 6 to 8 inches deep before planting to promote root growth
- After planting, cover bulbs with soil and gently firm it down to remove air pockets, then water thoroughly if soil is dry
- Mulching after planting can help insulate the soil and regulate temperature through winter
Planting at the correct depth and spacing is crucial for healthy growth and abundant blooms in spring. Typically, planting in autumn (September to November) is recommended for daffodils to establish well before winter
. In summary, aim for 4–7 inches deep, roughly twice or three times the bulb's height, with proper spacing and soil preparation for best results.
