Bush Beans vs Pole Beans — Soil Temperature, Spacing, Supports, Containers

Bush or pole?

Trait	Bush beans	Pole beans
Height	About 2 ft (UMN); 1–2 ft (Iowa State)	Twining vines up to 6 ft and sometimes taller (UMN)
Support	None needed (UMN, USU)	A trellis or poles, put in at planting (UMN, UW); yields more when trellised (USU)
Harvest pattern	A large harvest at once, suited to canning and freezing (UMN); picks over 2–3 weeks (USU)	Flowers and sets pods all season (UMN); picks over 5–6 weeks (USU)
First harvest	50–60 days (UW, USU)	60–65 days (UW); a few days later than bush types (Iowa State)
Yield per 10 ft of row	7–10 lb (USU)	10–12 lb (USU)
Small-space fit	Plant on the south side of taller crops so they get full sun (Virginia)	Takes less ground (UMN); vertically trained plants are easier to pick and get more air movement (Virginia)

Clemson also lists half-runners, with runners about 3 ft long, grown like bush beans but possibly yielding more on a 3–4 ft trellis.

Drawing by The More One Sows, based on the cited sources. Follows the UMN, Iowa State, Clemson, UW–Madison, UC IPM and Utah State figures given in the text. The day scale is drawn to scale; the plants and supports are schematic and not to scale.

1. Bush beans: about 2 ft tall, no support (UMN); 1–2 ft (Iowa State)
2. Pole beans: vines up to 6 ft and sometimes taller (UMN) on supports 6–8 ft tall (Clemson, UW); UC IPM gives 6–10 ft
3. In-row spacing: bush 2–4 in (Clemson), pole 3–4 in (UW)
4. First picking 50–60 days for bush and 60–65 days for pole (UW); bush beans pick over 2–3 weeks, pole beans over 5–6 weeks (USU)

Soil temperature and timing

Beans are frost-tender (CSU); New Hampshire's guide says to sow after the last frost (UNH).

Question	Figures given
Minimum soil temperature	50°F (UW); 55°F (CSU); 60°F (USU, UC IPM); at least 60°F at 4 in deep (Clemson)
How CSU measures it	At 8 a.m.; beans are the exception at 6 in deep instead of 4 in (CSU)
Best range	Optimum 80°F, maximum 90°F for germination (CSU); 65–85°F for germination, growth and yield (UC IPM); 60–75°F average growing temperatures (Clemson)
Days to emerge	6–14 (CSU); 7–10 at 65–85°F (USU); about 10–15 at around 60°F (UC IPM)
Cold, wet soil	Seeds rot (UC IPM); root rot and damping-off (USU)
Spring sowing	Around the average last frost (CSU); from one week before it, or 2–3 weeks before under plastic mulch or row cover (USU); about May 10 in central Iowa (Iowa State); late May or early June in much of Minnesota (UMN)
Last sowing	Bush beans until early August in Minnesota (UMN) or mid-July in Utah (USU); August 1 is the last practical date in central Iowa (Iowa State). UW: count back from the first fall frost

Find your dates on frost dates explained or count forward with the planting calendar.

Planting step by step

Pick a sunny, well-drained spot. Full sun is required (USU); pH 6–7, and clay or silt loams suit beans better than sandy soils (UMN).
Put up pole supports first. Install them at planting (UMN, UW) so roots are not disturbed later (NC State, for containers).
Sow about 1 in deep (UMN, USU, Clemson, UC IPM); 1–1½ in (CSU, Iowa State).
Space and thin to the in-row figures in the next table.
Water evenly, about 1 in per week (UMN, Iowa State); most critical during flowering and pod sizing, and overwatering promotes root rot (USU).
Go easy on nitrogen. Beans fix their own; extra nitrogen gives leaves, late flowers and poor pod set (USU). If you use an inoculant, buy one labeled for beans, not peas (UMN).
Re-sow bush beans every 10–14 days (Clemson), every 2 weeks (UMN, UW, UC IPM), every 2–3 weeks (Iowa State) or every 14–21 days (USU). Pole beans keep flowering until frost and do not need it (UMN).

Spacing and supports

Source	Bush beans	Pole beans	Support height
UMN	4 in; rows 2–3 ft	4 in in front of a trellis, or 2–4 seeds per pole	6-ft stakes and twine, or a teepee
USU	2–3 in; rows 18–24 in	—	Wooden poles or fencing
Clemson	2–4 in; rows 2–3 ft, or two rows 18 in apart in a 4-ft bed	5–6 seeds in a circle 6–8 in from each teepee pole	At least 6–8 ft
UW	2–3 in; rows 18–24 in	3–4 in; rows 30–36 in	6–8 ft stakes; teepee, A-frame or rectangle
Iowa State	Thin to 3–4 in; rows 2 ft	Thin to 4–6 in; rows 2–3 ft	About 6–7 ft
UC IPM	Thin to 6 in; rows about 2 ft, or two rows 18 in apart per side of a wide bed	4 in on both sides of the trellis, thinned to 6 in	6–10 ft
CSU	Snap beans 6 in each way in block beds, or 4 × 12 in; close spacing only on soils with 4–5% organic matter		—

Virginia Extension suggests a tripod of stakes for pole beans, or sweet corn as a living trellis, with trellis posts driven at least 18–24 in into the ground. In square foot gardening, UF/IFAS puts 9 string beans in a square; Phipps gives 9 bush beans, or 8 pole beans along a trellis on the north or west side of the bed. Compare other crops on square foot gardening spacing.

Containers

Size: at least 2 gallons, 8–10 in deep, plants 2–3 in apart (NC State); UMD lists beans in both its small class (1–3 gal, 4–6 in deep) and its medium class (4–6 gal, 8–12 in); UW–Madison puts bush beans with the larger crops, at least 5 gallons and 12–18 in deep. See container sizes for vegetables.
Support: vining vegetables, beans included, need a trellis set up at sowing (NC State).

Harvest

Pick snap beans before the seeds bulge the pods (UMN), when pods are firm and crisp with small seeds, about 7–14 days after flowering (USU), or about pencil-thick and 4–6 in long (Iowa State). Leaving mature pods on the plant reduces yield (Iowa State). Utah State suggests 5–15 ft of row per person for fresh eating.

Heat, flower drop and pests

Problem	What sources say
Flowers drop in heat	Above 90°F, especially in 'Blue Lake 274'; pods set again when days cool (Clemson). Above 95°F with dry conditions (USU). Hot days and nights; pole beans may drop a few pods and then resume (UMN). High heat plus low soil moisture (UC IPM)
Mexican bean beetle, bean leaf beetle	Copper or tan beetles with black spots, yellow egg clusters under leaves; small plants suffer most (USU). Mexican bean beetle is also named by Clemson, bean leaf beetle by UMN
Seedling pests	Flea beetles, slugs and snails; cloth covers until about six leaves (UC IPM). Cutworms near the soil surface (USU, UMN)
Aphids, spider mites, leafhoppers	Spider mites are worse in hot, dry weather (UMN); leafhoppers curl leaves (USU)
Diseases	Bacterial blight and white mold (UMN); rust and gray mold (Clemson). Let soil dry between waterings and rotate beds yearly (USU)

This page gives no pesticide or fertilizer rates. Follow your soil test and any product label exactly, and ask your county extension office to identify problems.

Where sources disagree

Question	Figures given
Soil temperature to sow	50°F (UW) vs 55°F (CSU) vs 60°F (USU, UC IPM, Clemson); measured at 4 in (Clemson) vs 6 in (CSU)
Days to first harvest	Bush 50–60 (UW, USU) vs about 55 (Clemson) vs 60 for snap beans (CSU); pole 60–65 (UW)
Bush in-row spacing	2–3 in (USU, UW) vs 2–4 in (Clemson) vs 4 in (UMN) vs 6 in (UC IPM, CSU beds)
Pole support height	6 ft (UMN) vs 6–7 ft (Iowa State) vs 6–8 ft (Clemson, UW) vs 6–10 ft (UC IPM)
Container	2 gal, 8–10 in (NC State) vs 1–3 or 4–6 gal (UMD) vs 5 gal, 12–18 in (UW–Madison)

Small-space checklist

Choose bush beans for a quick crop in a bed edge or pot; pole beans for a long harvest from little ground.
Wait for soil of 50–60°F (60°F in most sources), around or after your last frost.
Set 6–8 ft supports before sowing pole beans.
Sow about 1 in deep; thin to the spacing table (bush 2–6 in, pole 3–6 in).
Re-sow bush beans every 2–3 weeks until midsummer.
Water about 1 in a week, steadily through flowering.
Pick often, while pods are firm and seeds small.

More crop pages: radishes, carrots, kale, lettuce, tomatoes and peppers.

Sources

All sources were opened and checked in October 2026. Rules and figures change; confirm with the original before acting.

Bush beans and pole beans