Miniature Garden Terrarium Workshop. Saturday, Feb. 19, 11 a.m. Make a miniature garden in a glass terrarium at Ken's Gardens, 2467 Old Philadelphia Pike Smoketown. $25, includes materials.

According to the company that licenses the product, Allstar Products Group in Hawthorne, N.Y., sales this year are twice last year’s, with 20 million sold since the planter’s invention in 2005.

LOVE YOUR GARDEN's Frances Tophill shared a handy hack on the ITV show this week which could save gardeners "hundreds or even thousands of pounds".