Allium cepa 'Walla Walla'
Onion
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Onion (Allium cepa 'Walla Walla') - Description
Onion 'Walla Walla' is a medium to large, sweet Spanish onion with light-brown skin and white, juicy flesh. Brought to Washington state from Corsica around the turn of the century. Famous for its sweet flavor in fresh eating. Very cold hardy. Can be directly sown in mid-spring. Long day. The only truly sweet and mild onion for long summer days in the northern two-thirds of the country. Not a winter keeper.HOW TO GROW ONIONS FROM PLANTS OR SETS: Plant as early in the spring as soon as the ground can be worked. Make furrows about 1" deep, carefully place plants or sets, lightly press in and cover with soil. Space 4-5" apart. Pull green tops as needed for scallions or allow bulbs to mature fully.
Onion (Allium cepa 'Walla Walla') - Blooming
Small flowers form balls on the tips of the flowering stems that are good for both fresh and dry floral arrangements.
Onion (Allium cepa 'Walla Walla') - Growth
Spring, summer, or fall flowering bulbous and rhizomatous perennials. Does well with full sun or partial shade.
Onion (Allium cepa 'Walla Walla') - Planting
Good candidate for filling in borders. Depending on the variety, can be planted via bulbs or seeds. In fall or spring plant as deep as the bulb is tall or wide, whichever is bigger. Self-seeds.
Onion (Allium cepa 'Walla Walla') - Pest
Onion fly and thrips.Like most plants that have bulbs, damp conditions makes Allium more prone to bulb rots caused by soil-borne fungi. Plants are especially vulnerable just after planting.Allium is also susceptible to white rot, mildew, fungal leaf spot (purple blotch and gray mold), and smut.
Onion (Allium cepa 'Walla Walla') - Interesting facts
Allium is a diverse genus of bulbous perennials that includes such plants as onions, garlic, chives, leeks, society garlic and giant ornamental onions. They all have relatively high concentrations of sulfur compounds which give them their unique smells and flavors. When the plant tissue is damaged some of these sulfur compounds are released, which explains why we cry when we cut onions. The sulfur compounds can dissolve in our tears, where it forms sulfuric acid. In response to the acid in our tears, we blink and produce more tears. This gives the impression that cutting onions makes us cry.
Onion (Allium cepa 'Walla Walla') - Soil and irrigation
Requires regular water during the growing season. All species need well-drained soil, especially soils on the sandy side. Keep dormant plants dry.
