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Vegetables

Broad Bean Growing Guide: Planting, Care & Harvest

An autumn-sown legume overwintered as a small plant, tipped in spring to check aphids and picked when the pods turn downward.

Broad Bean

Vicia faba

Growing calendar

Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.

Sow / plantGrowingHarvest

Guides

Common problems

Start from what you can see on the plant.

Pests and diseases (38)

Problems recorded for this plant, most serious first.

Bacterial Wilt

Disease

Leaves wilt while still green during the day and recover in the morning and evening; after a few days of this the plant dies. Cut the stem and stand it in water and a milky white bacterial ooze streams out in threads.

Fusarium Yellows

Disease

Yellowing starts on the lower leaves, the petioles twist and the plant leans to one side. Vascular tissue browns, growth stops, and heading vegetables may die without ever forming a head.

Powdery Mildew

Disease

White patches appear scattered on the upper leaf surface at first, then the whole leaf is coated in a white powder. Leaves later yellow, brown and die back, and reduced photosynthesis cuts growth and yield.

Late Blight

Disease

Dark green water-soaked lesions appear on the leaves and expand quickly into brown dead tissue. White mold forms on the underside and at the lesion edge, and dark brown lesions spread to stems and fruit.

Brown Leaf Spot

Disease

Small light brown to gray-brown spots form on the leaves and enlarge into irregular lesions. When they merge the whole leaf dies and plant vigor drops sharply.

Sclerotinia Rot

Disease

The crown, stem or head rots in a water-soaked way and is covered in white cottony mycelium. Black sclerotia later form inside and on the surface, and the plant wilts and dies.

Rust

Disease

Small raised orange-yellow to red-brown pustules form on both leaf surfaces, then rupture and release powdery spores. Heavy infection yellows the leaves and kills them early.

Southern Blight

Disease

The stem rots at soil level and white silky mycelium spreads over the crown and the surrounding soil surface. Brown sclerotia the size of rapeseed then form and the plant wilts and dies rapidly.

Anthracnose

Disease

Light brown to dark brown round lesions with sharp margins form on leaves and fruit, slightly sunken in the center. In wet weather salmon-pink slimy spore masses ooze out on the lesions.

Root Rot

Disease

Fine roots rot brown to blackish brown, growth stops and the lower leaves yellow. The plant wilts easily in the daytime and eventually dies outright.

Root-knot Nematode

Pest

The plant wilts in the daytime and does not recover with feeding or watering. Pull it up and the roots carry beaded chains of galls of varying size with few fine roots.

Gray Mold

Disease

Water-soaked brown lesions form on flowers, fruit and leaves, densely covered by a fuzzy gray mold. Fruit rots and drops, and decay continues in storage after harvest.

Leaf Spot

Disease

Small round brown to gray-white lesions appear on the lower leaves, the centers turning gray with tiny black specks. As they multiply the leaf yellows and drops early.

Downy Mildew

Disease

Pale yellow to yellow-brown angular lesions form on the upper leaf surface with a gray-purple mold in the matching spot underneath. Lesions merge, the leaves die back and the plant declines early.

Ring Rot

Disease

The bark of branches and trunk becomes rough and warty, serving as the inoculum source. Fruit develops round brown lesions that soften and rot in concentric rings.

Replant DisorderNecrotic MosaicNecrotic RingspotWitches' BroomMosaic DiseasePlant-parasitic NematodesBlister DiseaseWhite Root RotFusarium Wilt and Damping-offBacterial Stem BlightStem RotBacterial Stem RotLeaf ScorchVein YellowingBrown SpeckAscochyta BlightBrown Snow RotChocolate SpotSclerotinia Snow MoldYellowsYellow RingspotBacterial Leaf SpotBlack Root

Read next

Keep a growing history for Broad Bean

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