Annual Legume · 11 varieties

Fava bean

Vicia faba

Fabaceae — the same plant family as bush bean, pea, pole bean, cowpea and 9 more here. Relatives share pests and diseases, which is why rotation plans group by family.

Fava bean (Vicia faba) is an annual legume. It wants full sun and pH 6–7.5 soil, with about 1 in of water weekly. It matures in about 120–150 days from sowing. Watch for aphids and chocolate spot. Below: its full sourced profile from 6 extension sources, plus a planting calendar timed to your frost dates.

Sun Full sun
Water Moderate
Matures 120–150 days — from seed from seed
Mature size 2–7 ft
Spacing 6–10 in
Soil pH 6–7.5est
Frost Hardy
When to plant fava beantypical · zone 6b
Your zone
…or your ZIP, for your real frost dates

Germinating
Seedlings
Growing
Flowering
Pods filling
Harvest

Typical dates for zone 6b — set your zone or ZIP for yours. This calendar assumes the crop is direct sown. Timing is a guide from the crop's sourced growth stages; confirm with your local frost dates and extension before you sow.

Growing fava beanevery fact says where it came from

What we will not put a number on

We do not give a feeding rate for this crop, and that is deliberate rather than a gap. The figures published by extension services are pounds of nitrogen per acre for a production field — they do not convert safely to a raised bed or a pot without knowing your soil test and your fertilizer's analysis, and guessing errs toward burning roots. It is also why every chart you find online disagrees with the next one.

We give watering as a depth per week rather than gallons per plant, because that is how it is actually measured and how the published figures are written. A gallons-per-plant number depends on your spacing, your soil and whether the plant is in a pot — so it would look more precise than it is.

Site & soil

Sun
Full sun
Soil pH
6–7.5est
Soil texture
Clay, Loam, Sandy, Well drained
Frost tolerance
Hardy
Suffers in days above
80 °F

No published figure for the temperature that would kill it and a warm-night limit. We looked — where a number is missing here it is missing from the research, not skipped. The crop’s frost and heat tolerance above still applies.

The plant

Mature height
2–7 ft
Mature spread
12–18 inest
Growth rate
Fastest
Spacing in row
6–10 in
Between rows
18–36 in
Planting depth
1–2 in
Container size
5–7 gal — low end is the minimum, high end is betterest
Support
Self-supporting
Grown from
Direct sow

Water & feeding

Water needs
Moderate
Water per week
1 in/wkest
Critical water
Flowering, Pod fillest
Feeding
Low

Timing & fruiting

Days to maturity
120–150 days from seed
Harvest cues
Pods filling
Takes cold in the ground down to
21 °F

Planted again for autumn

Sow by
late Jun typical · zone 6b

120 days to maturity from sowing, counted back from the first frost above. Not published for anywhere in particular: it is your own frost date and this crop's own figure, which is why it works wherever you are. A days-to-maturity figure is a catalog number for a good season rather than a promise, and a cold month moves it.

Edible parts per source: seed, fruit.

What tends to go wrongmost-cited first
PestsAphidsBean weevil
DiseasesChocolate spotPowdery mildewViruses

Compiled from the extensions cited below. Which ones actually show up depends on your region — your extension's local list is the last word.

⚠ Reported toxicityverbatim from cited sources

Different parts differ — the edible part is the seed and fruit; the notes below flag other parts or preparations.

PeopleToxic raw seeds

Recorded exactly as the source states it — not medical or veterinary advice. If a person or animal may have eaten a toxic part, call Poison Control (1-800-222-1222) or your vet / the ASPCA line (888-426-4435).

All 11 varietiesthe ones with their own page are linked
Variety TypeHabit DaysColorWhat it is known for
Aquadulce Claudia Heirloom 85 White Garden Betty describes this astakes the cold
Bell Bean Cover Crop 75 Brown Fedco Seeds describes this asgives a heavy crop · takes the cold
Broad Windsor Heirloom Shelling 75 Brown
Crimson Flowered Heirloom Shelling 90 Red Siskiyou Seeds describes this asgrown to look at
Extra Precoce a Grano Violetto Heirloom Shelling 68 Purple
Ianto's Return Purple Podded Shelling 130 Bicolor Carrick Seeds describes this astakes the cold
Robin Hood Shelling Dwarf 83 Green Royal Horticultural Society describes this ashappy in a pot
Statissa Shelling Compact 120–150 Mr Fothergill's Seeds describes this ashappy in a pot
Sweet Lorane Cover Crop 230 Bicolor Adaptive Seeds describes this astakes the cold
The Sutton Heirloom Shelling Dwarf 85 White Growseed (UK) describes this ashappy in a pot
Windsor Heirloom Shelling Bush 75 Brown
Sources6 cited · 6 organizations
  • Iowa State University Extension and Outreach
  • NC State Extension
  • UC Master Gardener Program (UC ANR)
  • UC Master Gardeners of Santa Clara County (UC ANR)
  • UC Small Farms Program (UC ANR)
  • University of Minnesota Extension

We compile bare facts from these university-extension and horticultural sources, never copied prose. 15 of the 21 values on this page carry a citation. The rest are marked est; hover one and it says why — either nobody publishes a figure we could point at, or a person set it and attached no source. Figures vary with climate and seed source; confirm with your local extension before you buy.

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