Sandy potting mix – Lilies do best in partially sandy soils. Potting mixes that are mostly peat will stay too wet and again cause bulb rot. However, you can buy any potting mix and just add sand to it. Mix about 2 parts potting mix with 1 part sand.

Do lilies need ericaceous soil?

Lilies need acid soil so most gardeners have to grow Oriental lilies in containers of ericaceous compost rather than in the ground.

Do lilies prefer acidic soil?

Burpee Recommends: Lilies prefer a soil pH of 6.5 – 7.0, raise your pH if it is not lower than 6.0.