Q. When do I know to harvest garlic, Walla Walla sweet onions,
green onions and garlic?
A. Garlic should be harvested in our hot, dry climate when
the tops have browned down by about 1/3. In other locations where it is not so
hot they usually will harvest when the ½ of the tops have turned brown or when
they fall over. We cannot wait that long in the hot desert.
There is a
thin, tight “wrapping” around the cloves when you harvest garlic correctly. For
appearance purposes and storage it is important that this wrap be continuous
and tight around the cloves. If you wait too long before the final harvest,
this covering starts to rot away, leaving the cloves exposed.
Sweet onions
like Walla Walla are harvested when the tops have fallen over. Do not step on
the necks to ready them for harvesting unless you plan to eat them fresh and
not planning them for storage.
The drying
down of the tops and tops falling over is a natural “sealing” process of the
bulb. Stepping on the tops can allow disease organisms to enter the bulb
because the neck has not dried down properly and may prevent any storage of the
bulb.
Scallions are
really nothing more than green or immature onions that have not yet begun to
bulb, just barely started bulbing or cannot bulb. In the case of the Welsh
onion, which is traditionally grown as a scallion, it cannot bulb up. White
Lisbon onion is also grown as a scallion but this onion will bulb up if left in
the ground too long. Harvest it before it starts to bulb.
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