|Brown grass under tree (with fallen tree leaves)|
Working in gardens every day, the signs are quite noticeable in advance, yet at my part-time garden centre job, customers bring in samples - not realizing the damage is from drought.
This baffles me. I figure, if the lawn is yellow and gone dormant, don't you think the heat will have an effect on your other plants?
Aerate your beds by giving them a good light scratch, so moisture doesn't run off the soil that has been baked to a hard crust. A good cultivation will allow the water to absorb more quickly.
|Drip-line of tree|
|Interior yellowing of leaves on Tilia cordata|
|Curled leaves on Prunus Shubert Chokecherry|
Some tell-tale signs of heat stress:
- curled leaves
- dropping leaves
- yellowing interior foliage
- dropping fruit
- bud drop (on late flowering Rose of Sharon)
- burnt edges
- heavy seeding
- insect infestations
- speckling on foliage
|Scorched Hosta leaves|
|Burnt edges on Brunnera|
|Over abundance of seeds on this Acer negundo|
I can't stress enough regarding watering. Even with the thunderstorms and intense rain for a few minutes we had last night, the water would not of penetrated deeply enough for roots after such a lengthy dry period. It just runs off down the sewers.
Everyone wants a green lawn. Instead, focus your watering on trees and shrubs and less on the lawn. After a good rain or so, the lawn will bounce back quickly. Trees and shrubs won't. They need our HELP!
Remember: A fully grown tree may lose several hundred litres of water through its leaves on a hot, dry day. The same tree will lose nearly no water on wet, cold, winter days. Almost all water that enters a tree's roots is lost to the atmosphere but the 10% that remains keeps the living tree system healthy and maintains growth.