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Monday, August 27, 2012

Asparagus Crowns Not Covered Deeply. Bury them now?


Asparagus started in a trench from seed and
on drip irrigation at The Orchard
Q. I planted asparagus crowns in March at at depth of 12 inches. They are in a pit and my plan was to cover the shoots with soil, an inch at a time, as they grew. Well, they grew rather sporadically so I didn't want to inadvertently bury a new shoot...so I never backfilled the pit to the level of the surrounding soil. Currently, I have about five shoots (out of 12 crowns) that have ferned. The crowns are about two inches underground and about 10 inches below the level of the surrounding soil. Is it OK to backfill the remaining 10 inches at this point? Or would that damage the plants? On the watering, there's no set schedule. Just keep the ground moist, but not too damp, at a certain soil depth, correct?


A. I would slowly add the soil over time up to the correct level. The problem you have now is that the crowns have adjusted to this soil level and I would be worried that completely covering the crowns might damage what you have already. When you begin to backfill, mix in plenty of compost with the soil you are using for backfill.


Asparagus started from seed and the trench
is all filled in. The asparagus spears are not
harvested the first year from seed. Spears
are allowed to grow and fern out to help
get the crowns established.
Dont just use desert soil. Make sure the soil is loose and can drain easily. Remove any large rocks so that these rocks do not cause the spears to emerge damaged or interfere with their emergence. Part of the sporadic emergence, I would guess, would have been your watering or how the soil drained. Asparagus loves to grow along streambanks or irrigation canals. It is an oasis plant so to speak and loves the same environment as palms, grapes, figs and even pomegranates. I hope this helps.

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