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Picture

How to Hampton Hack and boost plants' flowering times!

13/7/2022

 
It's July which means it's Hampton Hack season (named in tribute to the Hampton Court Flower Show).

At this time of year many early summer perennials are running out of steam, with flowers finished and leaves looking grotty. The good news is that the correct pruning will give you a second chance to enjoy fresh growth & new flowers in the same season!

For Penstemons, Phygelius (cape fuchsia) and woody-stemmed Salvias, such as 'Hot Lips', you are looking to cut the plant back by half - but only once the first flowers are finishing.

Picture
A cut-back 'Salvia nemerosa Caradonna'

For many other perennials, including soft-growth nemerosa Salvias, you need to carry out a hard hack, virtually down to the ground,  leaves and all.

Hold your nerve: it's worth it!

If you leave the flowers until they have formed seed, the plant will consider it job done for the year and become dormant (and make your borders look messy to boot), whereas a cut encourages them to have another a go at flowering in order to form seed.

Following the shearing give your plants a drink and a multipurpose feed to boost them into second growth. You will be surprised at how quickly you are looking at beautiful flowers and healthy leaves again!
Picture
The Salvia nemerosa bed in our garden looked lovely in June ...
Picture
But was looking tired by July, with most of the colour drained out ...
Picture
So we Hampton Hacked it, and now look forward to our second flowering!
Other perennials which can be cut back hard once the first flowers start to fade include:

Delphiniums
Geraniums
Lupins
Campanula (bellflower)
Nepeta (catnip)

Acanthus (bear's breeches)
Achillea (yarrow)
Alchemilla (lady's mantle)
Centranthus (valerian)
Centaurea (perennial cornflower)

Coreopsis (tickseed)
Gaillardia (blanket flower)
Knautia
Leucanthemum
Lobelia

Lysimachia
Lythrum (loosestrife)
Monarda (bee balm)
Oenothera (evening primrose)
Papaver (poppy)

Phlox paniculata types
Polemonium (jacob's ladder)
Scabiosa
Tanacetum
Veronica

Head to our YouTube channel for tutorials: click here.

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