Bulbs can grow through mulch. They have a lot more stored energy than seeds and can grow up through up to 2 inches of mulch. Any more than that and the plant may die before it breaks through to the surface. It's perfectly fine to mulch your bulb bed in early spring.

Will bulbs grow through bark chippings?

As they try to germinate on the soil surface, the shoot is deflected underneath the bark where it runs out of vigour and dies. ... It's important to note that our bark does not kill plant life whatsoever - any established plants with strong shoots or bulbs, such as crocuses and snowdrops, will grow through as normal.

Can tulips grow through mulch?

Gardeners need only "top plant": Till (loosen the soil) about 2 inches deep, place the bulbs on top of the soil and then cover them with a 2 to 4 inch layer of mulch and water to achieve successful tulips that will thrive year after year. No strenuous digging needed. "Top planting is a good way to go," says William B.