HEB Queston for zone 10a

Goodland, FL

How big should the opening for the wick into the planting medium? I seem to be drowning summer squash. No problem with tomatoes and okra. Thanks

Bay City, MI(Zone 6a)

The opening only needs to be large enough to accommodate the diameter of the wick. It might be of some benefit to you if we started a dialog about your o/a set-up. That you DO need a wick is a pretty clear indication you could probably do better by adopting a soil with better drainage/aeration.

My wick set-up below:

Al

Thumbnail by tapla
Goodland, FL

I am using coco coir 80% perlite 20%. The opening for the wick is about 7 inches. I am not using any cord or anything else like that.

Goodland, FL

Sorry fogot to say thank you Al

Bay City, MI(Zone 6a)

Generally, those that use coir commercially limit it's presence in container substrates to 10%, 15% at the max. It's fine particle size (promotes excess water retention) and extremely high K (potassium) content can both be problematic. Often too, it's very high in soluble salts, perhaps as a result of having been exposed to seawater during processing. It's difficult to try to nail down a specific cause related to your problem because there are several potential possibilities, given the high volume of coir you're using.

If nematodes aren't an issue in your area, partially burying the container might be helpful until the planting has matured to the point where it needs watering at least every other day while still partially buried. This employs the earth as a wick and turns your pot into a mini raised bed, hydrologically speaking. It should resolve the 'drowning' issue if in fact that is the source of the trouble.

Best luck - Happy New Year!!

Al

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