Tuesday 27 March 2012

uneasy thoughts of drought

The garden is beginning to look ominously dry.  I did the watering by hand using cans, including the recently planted things in the end of the wood, and the area down the side of the back garden where I removed the Rosa rugosa 'Alba', and I remembered to go and water the 'Quaker's Bonnet' primula in the ditch bed, that I am now meant to call 'Lilacina Plena'.  It took a good hour, and that was without soaking the conservatory.  Tomorrow I am going to have to investigate the hoses, and find the spray end fittings that I removed last autumn so that they wouldn't freeze and split, and see if they still work, or at least can be persuaded to work, or if I'm going to have to buy new ones.  They do have a tendency to stick and choke up with age and use.

I'm going to have to start watering all the trees and shrubs planted last year.  They won't yet have large or well-established enough root systems to cope with this weather, and spring, when the new leaves are bursting, is a key time for them.  Likewise all herbaceous plants set out last autumn, the newly purchased, those raised from seed, and existing garden stock that was lifted and divided.  I renovated one end of a big border, and had to replace a large number of winter casualties, so it's going to be a lot of watering.  I don't use sprinklers, which apply water over too wide and indiscriminate an area, and on plants' foliage rather than their roots.  Instead I'll go around with the hose, plant by plant, and spray every root zone in turn, counting to thirty, fifty or sixty for each one, depending on how large the plant is and how dry it looks.  I'll do one bed one evening, another the next, and so work my way round the garden over the course of a week.

At one level it's not an unpleasant task.  It gives me a chance to stand looking at the garden, appreciating individual plants at close quarters, and picking up on aspects of planting that could do with improvement.  I can listen to the radio while I'm doing it, and the intensive watering regime only lasts while the weather's warm.  If we go back to an apparently endless cycle of low pressure systems sweeping in from the west, like we have in recent summers, then the need for emergency watering will fall right back.  It does take time, though.  The normal decorative pots plus my propagation efforts in the greenhouse can take an hour by themselves in the summer, so add in extra for the borders, and it can be getting on for a quarter of the gardening day just spent watering.  It's time spent that will keep plants alive (on which I have expended much effort and expense getting them in the ground) but it doesn't progress the garden.  Weeding, mulching, dead-heading, pruning, planting, laying paths, installing ornaments, bringing out pots for the summer, all of these make the garden better groomed or furnished than it was before.  Spending hours watering it just to keep it from dying doesn't.

The damage done by those two cold nights in February continues to reveal itself.  The regrowth on the Olearia macrodonta and the various Callistemon has been clobbered, and I'm not sure they will have the energy to regenerate again.  The top parts of last year's Pittosporum tenuifolium 'Wrinkled Blue' have defoliated, and hard pruning will probably be required.  Every leaf on the Michelia doltsopa is brown and shrivelled, which is galling when the one tucked into the corner between two walls at work is fine.  Temperatures there went down to minus 13 in the open, showing what protection a wall can afford, and how narrow the margin is between receiving a clobbering and escaping unscathed.  Arbutus x andrachnoides has lost most of its leaves, and although I don't think the whole tree is dead, there are quite a few dead twigs in the crown, which are going to spoil the look of it even when (or if) it leafs up again.

The spring weather is very beautiful, and the flowers of spring.  Primroses, magnolias, little yellow Iris bucharica, pasque flowers, cherries, Muscari, over fifteen years' worth of hyacinths in a myriad of colours (though not pink) planted into the borders after doing duty in pots, species tulips, daffodils, violets, lesser periwinkle.  The grass is still fresh and green, the leaf buds are bursting by the day, and the birds are singing from every bush and tree.  Most of the time I enjoy it while it lasts.  But the garden is beginning to look ominously dry.  In years when by July things are flagging I can console myself that I only have to keep them going for another month or six weeks, and then it will cool down, even if there isn't much rain in September.  Now it's still only March.  Keeping things going for six months could be very hard work.

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