The soil composition is suitable for growing tulips
Hello, my name is Adam. I am ready to plant my tulip bulbs in containers, & wonder about what composition of soil they like. I have 6 plant troughs in Guildford, which has very clay soil, so I have bought some gravel to mix into some organic matter : Can some kind person advise approx proportions for soil mix for tulips. Troughs are 25cm deep, will this be deep enough for tulips? Planning 10bulbs per each 70cm long trough?