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Wet,
wet, wet
9 January 2003
Last year must have been the most trying I have
ever experienced in the garden. I got more work
completed during December than any other month
since last April. Wet, wet, wet. It never seemed
to stop and when it did, the ground was saturated
without the opportunity to dry out, before the
next downpour.
It’s a new year and hopefully things can
only get better but just in case we get more
of the same it is best to have a contingency
plan, such as a boat!
Seriously though, if there is a part of the
garden which really suffers during prolonged
rain, remaining wet throughout the year, then
it is sensible to treat it as a bog garden and
plant accordingly.
Less
severe water logging can be overcome by forming
raised beds or installing land drains. Large
areas may be planted with trees such as the
willow. It can be kept within bounds by pruning
the stems hard every second year. The varieties
with coloured bark can be striking in winter.
Useful conifers include the Dawn Redwood (left),
Metasequoia glyptostroboides, which enjoys wet
ground. It is a fast growing deciduous tree
with soft green leaves which turn to a buttery
yellow in autumn. Taxodium distichum, the Swamp
cypress, loves having its feet in water with
its “knees” sticking out. It will
make a big tree.
Good shrubs for wet land include the dogwoods.
Cornus alba has
bright red stems while C.stolonifera ‘Flaviramea’
produces yellow barked branches. The young stems
have the best colour so cut them to within a
few inches of the ground each spring before
they come into leaf, to encourage new growth.
Hostas, astilbe, candalabra primula, gunnera
and houttuynia all succeed in wet, boggy soil.
Vaccinium, better known as Blueberry will only
crop well in wet, acid soil. My favourite small
tree, Amelanchier likes it permanently damp.
The
other less likely contingency plan is to keep
the garden hose handy and be prepared to bark
mulch the planted beds in spring to conserve
the moisture.
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