This photo shows 2 lots of zucchini this morning at 10.30.
The poor old ones on the left are out in the main garden...under 50% shade...in a 'normal' bed. The ones on the right are in a wicking bed under the Almond tree.
Both lots received water on Sat (our watering day). The ones on the left have already needed to have their container (for watering) turned on today (Tuesday)!
Both lots of plants are the same age...although not the same type I will admit.
It's on these hot days (36C+) and still no rain in sight that I'm glad I've experimented with these wicking beds.
Basically the beds are built over a plastic membrane layer at the base, this is raised to form a small pool of underground water, fed by a length of drainage hose, that wicks upwards to where the plant roots can use it.
As the pool dries out oxygen is drawn into the soil and when they are watered again the oxygen is forced out. Make no sense at all??
For full descriptions and photos see my blog entries here:
I'm about to re-build most of these beds to make them deeper for Autumn crops but even these shallow ones are holding water well.
I'm also going to try a box version for growing salad greens as this heat just saps all moisture from the containers.