Episode 159: Cosmos & Hollyhocks with Jonathan Sheppard

My guest this week is Jonathan Sheppard, a political lobbyist who somehow fell into becoming the holder of 2 national plant collections; hollyhocks and cosmos. Jonathan talks about how to grow hollyhocks and cosmos, what you can, or can’t do about rust, good varieties to try and what to look out for in the coming year in terms of new varieties and colours.

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What we cover

Hollyhocks and rust

When to sow hollyhocks

Are they biennial or perennial?

The best places to grow hollyhocks

Some of the best varieties

New colours 

The cultivation of Cosmos

Links

British Hollyhocks

Jonathan Sheppard on Twitter