This library and any plant lists generated from it reflect plants we’ve carried or could obtain over the past 12–18 months, not our current inventory or availability.
“Fire Wise” plants are not fireproof. These plants, when maintained properly, have a higher fire resistance reducing fire danger. This list is built on the recommendations of local governments and the Diablo Firesafe Council
Height: 18 inches
Spacing: 6 inches
Sunlight:
Hardiness Zone: (annual)
Description:
With its sweet, mild flavor, Walla Walla is an exceptional variety to grow in the garden; bulbs can reach up to 2 lbs each; plant in August to overwinter and harvest in June; well balanced flavor profile makes it ideal for raw eating, cooking or pickling
Edible Qualities
Walla Walla Onion is an annual vegetable plant that is typically grown for its edible qualities. The entire above-ground parts of the plant are edible, and are typically harvested when mature. The edible parts have a sweet taste and a juicy texture.
The plant is most often used in the following ways:
- Fresh Eating
- Eating When Cooked/Prepared
- Cooking
- Pickling
- Canning
- Sauces
Planting & Growing
Walla Walla Onion will grow to be about 18 inches tall at maturity, with a spread of 4 inches. When planted in rows, individual plants should be spaced approximately 6 inches apart. This vegetable plant is an annual, which means that it will grow for one season in your garden and then die after producing a crop. As this plant tends to go dormant in summer, it is best interplanted with late-season bloomers to hide the dying foliage.
This plant is typically grown in a designated vegetable garden. It should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selected variety of a species not originally from North America, and it is considered by many to be an heirloom variety. It can be propagated by multiplication of the underground bulbs; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.
Walla Walla Onion is a good choice for the vegetable garden, but it is also well-suited for use in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing the canvas against which the larger thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.
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