Jerusalem artichokes are considered invasive by some gardeners, and flowers should be cut before seeds develop if you don’t want the plant jumping the fence. … Plant tubers 3 feet apart, keep the soil moist and be patient.
How do you keep Jerusalem artichokes from spreading?
Use the mower to remove the top growth frequently to prevent Jerusalem artichoke tubers and rhizomes from spreading. Apply herbicide with a sprayer from midsummer to late autumn to get rid of Jerusalem artichoke rhizomes and tubers. Spray as soon as the plants reach a height of 8 to 12 inches.
What are the benefits of Jerusalem artichokes?
They are rich in iron to give you energy, along with potassium and vitamin B1, which support your muscles and nerves. Although they’re sweet, their starchy fibre stops any spikes in blood sugar levels – indeed they have a lower glycemic index (GI) score than potatoes – and they aren’t fattening.
How do you know when to harvest Jerusalem artichokes?
Jerusalem artichokes are generally ready for harvest when the leaves die down. If you have the patience you might want to wait for the first frost as tubers harvested after they got hit by the first frost taste sweeter. In my experience the best harvest season is end of september until march.
How many artichokes do you get from one plant?
A healthy plant should produce six to nine buds per plant. The main harvest usually occurs in April and May. Select buds for their size, compactness and age.