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Green beans are one of the easiest, fastest vegetables: direct sow after all frost risk into warm soil (above 16°C), 5-8cm apart for bush types. Bush beans crop in 50-60 days in a concentrated flush; pole beans need a 2m support but yield for months. Pick pods young every 2-3 days — leaving pods to fatten shuts down production. As legumes they fix their own nitrogen, so go easy on fertilizer. A seed packet costs $2-4 and sows a whole row.
Key facts
- Direct sow only — beans resent transplanting and germinate in days in warm soil; seeds rot in cold, wet ground below ~16°C.
- Bush varieties crop in 50-60 days with no support; pole varieties need a 2m+ trellis but produce 2-3x more over a long season.
- Legumes fix atmospheric nitrogen through root bacteria, so they need little fertilizer and leave soil richer than they found it.
- Picking every 2-3 days keeps plants producing; letting pods mature seed tells the plant to stop flowering.
Care requirements#
| Plant type | Outdoor warm-season annual legume (bush or climbing) |
| Growing medium | Any well-drained garden soil; bush types thrive in 20L+ containers, pole types need a large tub plus trellis |
| Light needs | Full sun, 6-8 hours daily |
| Water frequency | About 2.5cm (1in) per week; critical during flowering and pod set — drought drops flowers |
| Sowing season | Northern hemisphere: direct sow May-Jul after last frost. Southern hemisphere: Oct-Jan. Soil must be 16°C+ or seed rots |
| Spacing | Bush: 5-8cm apart in rows 45cm apart. Pole: 3-4 seeds per pole, poles 60-90cm apart |
| Support | None for bush types; sturdy 2m+ poles, teepee, or netting for pole types, installed at sowing |
| Temperature range | Grows at 18-29°C (65-85°F); frost kills plants outright, flowers drop in extreme heat |
| Fertilizer | Minimal — legumes fix their own nitrogen; excess nitrogen gives leaves instead of pods |
| Soil pH | 6.0-7.0 |
| Container suitability | Excellent — bush beans are among the best container vegetables |
| Toxicity | Cooked pods safe; raw mature beans (especially red kidney) contain lectins and shouldn't be eaten raw in quantity |
Growth & propagation#
| Days to harvest | Bush: 50-60 days from sowing. Pole: 60-70 days, then continuous production |
| Yield per plant | Bush ~0.5-1kg in 2-3 weeks; pole plants 2-3x that over the full season |
| Edible parts | Immature pods; mature seeds edible only after proper cooking |
| Propagation methods | Direct-sown seed only, 2-3cm deep; succession-sow bush types every 2-3 weeks for continuous supply |
| Harvest cue | Pods pencil-thick, smooth, and snap cleanly — before seeds bulge visibly |
| Storage | About a week refrigerated; blanch and freeze, or pickle (dilly beans) for long storage |
Common problems & troubleshooting#
| Symptom | Likely cause | Fix |
|---|---|---|
| Seeds never emerge after sowing | Sown into cold, wet soil — seed rotted | Wait until soil holds 16°C+, sow into moist (not soaked) ground, and re-sow; beans catch up fast |
| Leaves skeletonized into lace | Mexican bean beetle (Americas) or bean leaf beetles | Hand-pick adults and yellow larvae from leaf undersides; row cover until flowering; strong plants outgrow light damage |
| Flowers drop without forming pods | Heat above ~32°C, drought stress, or excess nitrogen | Water deeply during flowering, mulch, and wait — pod set resumes when heat breaks |
| Distorted sticky shoot tips, clustered black insects | Black bean aphid (blackfly) | Blast with water, pinch out worst-infested growing tips, use insecticidal soap; ladybirds usually catch up |
| Brown rusty pustules on leaves | Bean rust fungus in humid conditions | Avoid overhead watering and working among wet plants, space for airflow, remove affected leaves, rotate beds yearly |
Never miss the 3-day picking rhythm
Sodate reminds you to pick every few days at peak season — the single habit that keeps bean plants flowering instead of shutting down.
Seasonal care#
Varieties & cultivars#
| Variety | Distinguishing trait | Note |
|---|---|---|
| 'Provider' (bush) | Reliable early cropper, germinates in cooler soil than most | Classic first-bean choice |
| 'Blue Lake' (pole & bush forms) | Straight, stringless, heavy-yielding pods | The canning-industry standard |
| 'Kentucky Wonder' (pole) | Heirloom climber with rich old-fashioned flavor | Needs sturdy 2m+ support |
| Yellow wax & purple types | Coloured pods, easy to spot when picking | Purple pods turn green when cooked |
Buying checklist#
- Buy seed, not seedlings — beans direct-sow better than they transplant
- Check bush vs pole on the packet before buying: they need completely different setups
- Seed should be plump and uncracked; bean seed stays viable ~3 years
- Stringless modern varieties save kitchen time over old stringy types
- For containers, pick a compact bush variety
Pricing by region#
| Region | Price range | Typical unit | Basis |
|---|---|---|---|
| US | $2 – $5 | Seed packet (25-100 seeds) | Garden centre + seed catalogue retail |
| UK | $2 – $5 | Seed packet | Garden centre retail |
| India | $0.25 – $1 | Seed packet | Agri supply + local nursery |
| Australia | $2 – $5 | Seed packet | Nursery + hardware garden centre |
| Canada | $2 – $5 | Seed packet | Garden centre retail |
USD figures are approximate conversions for comparison; switch the dropdown to see each region's actual local-currency listing price.
Often confused with#
Name confusion warning#
"Green bean", "French bean", "string bean", and "snap bean" are all the same plant (Phaseolus vulgaris) — but a UK "runner bean" is a different species with different growing behavior. Check the botanical name when buying seed abroad.
Where it's actually grown#
Bean seed is field-grown at scale in dry-summer regions — Idaho and Washington in the US, plus production areas in France, Tanzania, and China — because dry harvest weather prevents seed-borne diseases. Garden centres sell regionally packed seed; seedlings are rarely sold since direct sowing works better.
Import & biosecurity restrictions#
| Region | Note |
|---|---|
| Australia | Bean seed imports are regulated for seed-borne diseases and need permits; live plants cannot be imported personally. Buy domestic seed. |
| US | Domestic sale unrestricted; small personal seed imports may need a USDA small-lots permit. |
| UK | Home-use seed imports generally fine; commercial lots need phytosanitary certificates. |
| India | No domestic restriction; imported varieties clear standard seed-import channels. |
| Canada | CFIA rules on commercial seed; home-garden packets typically clear without issue. |
Similar plants
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Frequently asked questions
Should I grow bush beans or pole beans?
Bush beans crop faster (50-60 days) with no support but finish in a few weeks; pole beans need a 2m trellis but yield 2-3 times more over the whole season. Small gardens often do best with pole types.
When do I plant green beans?
Direct sow after your last frost once soil reaches at least 16°C — cold, wet soil rots the seed. In the northern hemisphere that's typically May-July; in the southern hemisphere October-January.
Why are my bean plants flowering but not making pods?
Usually heat above about 32°C or drought during flowering, which makes plants drop blossoms. Water deeply, mulch, and pod set resumes when conditions moderate.
How often should I pick green beans?
Every 2-3 days, while pods are pencil-thick and before seeds bulge. Frequent picking keeps the plant flowering; leaving pods to mature shuts production down.
Do green beans need fertilizer?
Very little — as legumes they fix their own nitrogen. Too much nitrogen fertilizer produces lush leaves and few pods.
