Pink Root Onion Disease: What is it and How to Prevent It

Close up of a red onion bulb infected with pink root onion disease.

What is Pink Root? Onion Pink Root is where leaves die back from tips, and roots turn pale pink, sometimes light red and purple. Stunted Growth. Pink root is a fungal disease (Phoma terrestris) that attacks alliums such as onions, garlic and leeks. Grass and grain plants are at times carriers but are not as severely affected. … Read more

What Are the Best Onion Companion Plants? Bad Onion Companions?

Green onions growing in the garden.

Companion Planting is the growing together of all those elements and beings that encourage life and growth; the creation of a microcosm that includes vegetables, fruits, trees, bushes, wheat, flowers, weeds, birds, soil, microorganisms, water, nutrients, insects, toads, spiders, and chickens.” – John Jeavons, How to Grow More Vegetables Than You Ever Thought Possible The Best … Read more

Onion Planting Guide

Planting When planting onions choose a garden site that is in full sun and has a well-drained soil. A soil pH of 6.0 to 6.5 is ideal for growing onions. Apply lime and fertilize according to soil test results. See Tracking and Adjusting Soil pH for information on adjusting the pH range of Garden soil. Many gardeners … Read more

How to Grow Egyptian Walking Onions

Egyptian walking onion bulbs on the plant's top set in spring.

What are Egyptian Walking Onions Egyptian walking onions are the most common name for this very prolific and unusual Onion variety. They also are called “tree onions” because of their tendency to produce a branching stalk from a cluster of onion sets at the plants top giving them a tree-like appearance. Another name for them … Read more

Onion Classification: Types and Varieties

Onions of various varieties pour out of a wicker basket.

There are a number of ways in which Onions are grouped. Grouping onions by taste is one way . You have only Sweet or Pungent using this method. The pungent or strong-flavored varieties and the milder ones. Milder varieties include Slicing varieties that we use for onion rings and sandwiches, like ‘Sweet Spanish’, and big red onions. … Read more

Onions Grown Hydroponically

Nutrient pH 6.0-6.7 EC – 1.4-1.8 PPM 980-1260 Onions are fairly easy to grow in outdoor hydroponic systems. They can also be successfully grown in an indoor set up. Starting Onion Plants for Hydroponic Gardens Onions can be started from either seed or set. An onion set is an immature small onion bulb planted instead … Read more

Troubleshooting Onion Plant Problems

Blotch disease on onion plants.

Onions and related crops such as garlic, shallots, chives have similar growing requirements, and naturally they share similar maladies. Problems associated with growing Onions and other Alliums can be categorized into cultural, pest, nutrients and disease Cultural Issues relate to maintenance of the Garden. Proper Sanitation techniques such as removal of plant debris, weeding and so forth. No … Read more