Saturday, April 23, 2011

HORT TIP -Late April

by Gail Anderson
IGC Horticulturist

The forsythia is blooming and the Red Sox have played their first home game. It's time to prune your roses and any gray leaf plants/shrubs. (Try to avoid cutting back any gray leaf plants in the fall.)

Prune now--roses, butterfly bush, blue mist shrub (Caryopteris), lavender (cut 1/3 to 1/2), pinks (Dianthus), etc.

It's also time to prune Clematis. There are three "pruning groups" depending on the type of clematis. Each group is pruned differently. It helps if you know your clematis variety. Completely Clematis Nursery in Ipswich has a great guide on their Web site http://clematisnursery.com/Pruning.aspx  If you know your clematis variety, you can reference that variety, and the  Web site will indicate its pruning group. Even if you don't know you variety, the general pruning guide (link above) will give you clues.

Large flowered purple clematis in a water feature, Newbury, Mass.

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