Thread: Penstemons
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Old 25-07-2003, 01:32 PM
Emrys Davies
 
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Default Penstemons

'Jeanne',

Penstemons do very well for a few years. Then their performance tends to
decline and you are likely to lose a few of them, particularly if you
have severe winters and they are not in a well-drained soil and sunny
position.

It is best to take cuttings in anticipation of losses. The cuttings root
quite quickly and the success rate is about 100% provided that you
follow a few simple rules.

Take 3"-4" long tip cuttings in September or October (I do mine mid
October) and reduce the leaf tips by about a third of their length.

Insert the prepared cuttings in a moist mixture of 50% compost and 50%
perlite and place in a cold frame. Do not expose to direct sunlight and
moisten the leaves twice a day with a fine spray for a few weeks to get
them established.

In very cold weather I place my cuttings in the porch where I can
maintain a temperature of 35-40 degrees F.

Plant out the rooted cuttings in their permanent position the following
April or May.

PS: The art of taking most cuttings is to replace the moisture loss
which they experience when severed from the mother plant. In such
circumstances humans are given a drip.

This how Bob Davies (no relationship) does his penstemon cuttings. An
interesting site.

http://www.penstemania.co.uk/#Whats%20New

Regards,
Emrys Davies.






" Jeanne Stockdale" wrote in message
...
When we moved into our present house some 18 months ago, we had a

wonderful
display of penstemons which lasted almost to Christmas. Last year they

were
very poor. This year we have had a reasonable flush of flowers but

they are
certainly not going to continue flowering for much longer.


I tried (the first year) to take cuttings but they weren't successful.

Does
anyone know the best way to take cuttings from Pestemons.

Also how should I look after the existing plants - each Spring I have

cut
them down to a couple of inches - is that the right thing to do?

Jeanne Stockdale