watering my emerald green arborvites - Knowledgebase Question

caledonia, wi
Avatar for Lightendog
Question by Lightendog
May 19, 2005
I have 56 emerald green arborvites, during the fall last year there was a mild drought and this spring now some look alittle dry, I've watered them and also gave them some mur-acid cause I know they like that. My question is how often and how much water do I put on them? Right now im giving them about 1 gallon of water every 3 days if it don't rain. I don't want to over water them or give them to little, the directions that came with the evergreens just said to water regularly which doesn't really tell me a whole lot
thank you for your time

Answer from NGA
May 19, 2005
Your arborvites will be happy with one deep soaking per week during the growing season. The general recommendation is one inch of water per week, applied slowly so it has a chance to trickle down and wet the entire root mass. If you water too often, you'll keep the soil too moist and the roots will suffocate. I'd cut back to one application of water per week. If you've built basins beneath each arborvitate, all you'll need to do is fill the basin with water, allow it to drain, then fill it a second time. Watering in this way concentrates the water over the root mass. If you're not sure how well your soil drains, or whether you're applying too much water, you can do a simple test. Water as you normally do and then wait 3-4 days. Dig a hole near the roots of your plant. If the soil is still moist 3" beneath the surface, you won't need to water for a few more days; if it's dry, it's time to water. After a few checks, you'll get to know your soil and how quickly it dries out, which will give you some indication of how often you'll need to water.

Best wishes with your landscape!

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