The heatwave this week has taken its toll.
Last week, in pretty hot weather, I was interested to see the chamomile taking shelter beneath leaves of chard in Raised Bed 2, which seemed to offer the herb some hope of protection – and me some hope of a few more flowers for my night-time infusions.
This week, the chard (above left) has flaked out entirely owing to a full frontal assault from a brutal midday sun, so the poor herb plants stand exposed as the temperature climbs to 42 C (107 F). Yesterday our car thermometer measured 45 C in the early afternoon; I nearly expired along with my herbs.
As for the squash, quite simply incinerated in the same bed (also above left), and the courgette (above right), we’ve had no crop at all this year – and it doesn’t look as if that’s going to change.
With humidity at 10-13% and a bit of wind, going anywhere is like walking into a fan oven. I guess we might be thankful that the humidity is far less than we used to experience in the Arabian/Persian Gulf, but that’s small compensation for internet weather sites that read: “42 C – hot with plenty of sunshine” and then (Monday’s forecast): “35 C – very warm”.
My plants have a different view about “very warm”:
It’s hard to know how to protect them. Covering them can help, but the temperature in the beds beneath the covers becomes fearsome, as far as I can tell. Some do a bit better where they have shelter from the hedge, like the chicory and the remnants of flat leaf parsley in RB 2:
This is a marginal advantage – it doesn’t prevent the plants from finding themselves rooted in a sea of boiling sand (if it’s damp) or a bed of fine grains almost hot enough to make glass (if it’s dry).
I think the only solution is to follow the time-honoured Egyptian practice of planting according to the seasons, unless one has access to covered beds and cooling systems (surely not energy-efficient). This means planting summer crops of corn and okra, karkaday and melons; and finding part-shaded corners where other plants can brave the midday heat and survive to produce fruit (tomatoes, cucumbers).
Once out the other side of this week’s heatwave, I’ll re-assess the damage – and report back on this year’s very surprising fruit crop.