SUMMER
ROSES IN DISTRESS
In a good year roses are
always the favourite for bright colour, scent and lovely shape of
blossom, but in the last few years they have had a bit of a struggle
with weird weather. They enjoy a deep
fertile
clay soil that is well drained, weed free and with plenty organic
matter added as a mulch or lightly forked in over winter.
Then with
decent weather, plenty warm sunny days and just enough rain to keep
them happy they will put on a great display. The wet winter added
just a wee bit too much moisture and a few floods but then the rain
went off as spring arrived and the sun came out for nearly three
months. Unfortunately this favoured mildew which took hold and
weakened the bushes. At the same time the long sunny weather favoured
plagues of greenfly which did the young shoots trying to grow no
favours at all. The rains finally arrived in mid June but the
weakened bushes were then subjected to blackspot disease. The wet
weather at the beginning of summer brought with it torrential rain
and thunderstorms as well as gales. The poor roses trying to put on a
show with their first flush, had no chance. The gales, shredded the
young leaves and broke the heads off numerous roses. Now at the end
of June weather has settled down to the normal pattern of a few days
rain and a few days
sunshine so I am hoping the roses will put on a
great show in their second flush. Choose a dry day to give a spray of
fungicide and pesticide to sort out any remaining greenfly, blackspot
and mildew and add a bit fertiliser to give them a wee boost. Remove
all old flowers before they form hips and cut back to the nearest
young shoot or even further if leaves have a bad dose of blackspot
fungus.
E H Morse |
Iceberg |
Now is a good time to visit
garden centres which have all reopened and check out roses in pots
for sale as they will all have some flowers on them. Roses can also
be propagated from hardwood
cuttings in winter about six
to ten inches long spaced about four inches apart and grown in a
nursery row in the first year as they may not all grow.
Roses are very accommodating.
They can be grown in prepared beds as bushes (floribundas and
hybrid
teas) up walls as climbers and along fences as ramblers. Shrub roses
are also great to add
height and structure at the rear of shrub
borders adding security and privacy to the garden. One of my
favourites is Ispahan, a large shrub rose with scented pink flowers
and healthy disease free
Rosa omiensis pteracantha |
foliage.
If you need added security try Rosa omiensis pteracantha, the red
winged rose, an
ornamental
shrub rose with stems covered in huge red thorns. There are numerous
climbers for all walls and even on the shaded north wall there are
several climbers that will be happy to grow and flower. Try some of
the white flowered Mme Alfred Carrier, Climbing Iceberg, Claire
Austin or
Alberic
Barbier. For pink flowers try Albertine, New Dawn or Gertrude Jekyll
a shrub rose but happy to be trained as a wall climber. Good yellow
roses for north walls are Maigold and Golden Showers and good red
ones include Paul’s Scarlet and Danse du Feu.
We
all have our favourite bush roses, but my list prefers those
varieties bred with strong disease
Dawn Chorus |
resistant
foliage, a trait still sadly lacking in numerous roses. My favourite
reds include E H Morse, Ingrid Bergman and Deep Secret. Good yellow
roses include Arthur Bell, Freedom and Golden Wedding. My best white
rose is still Margaret Merril but still a bit prone to blackspot.
Iceberg has always been the best white floribunda. Myriam is a great
pale pink and Congratulations a deeper pink and Dearest a great
floribunda. My best orange rose is Dawn Chorus. Two good bicolour
roses are Piccadilly and the old Rose Gaujard.
Wee
jobs to do this week
Saskatoon bushes get netted |
Saskatoon
berries are ripening up and
our local blackbird is getting quite agitated as he knows the nets
will appear and stop him getting his summer food source. Bushes are
over six foot tall, but with tall posts and nets I can still make
them secure. Where nets reach the ground I cover the ends over with
soil as I’ve seen the blackie flick up the nets and limbo dance
under them to get into his fruitful paradise. Saskatoons down south
in Worcester have now been harvested due to a warmer climate.
END