How to Grow Topcrop Bush Bean
Phaseolus vulgaris 'Topcrop'
Topcrop Bush Bean is a reliable warm-season variety prized for its bush habit and quick yield. Gardeners choose this easy-to-grow legume for fresh pods that mature in just over two months under full sun.
📷 Wikimedia CommonsStarting Topcrop Bush Bean: indoors or direct sow?
🌾 Sow directly in the garden — Topcrop Bush Bean is not usually started indoors.
Do not start indoors; sow seeds directly into the garden only after the last frost date has passed.
Soil, care & harvest
Prepare loose, well-draining soil with a pH between 6.0 and 7.0 to ensure strong root development. As a warm-season crop, you must wait until after the last spring frost when the ground has warmed up before sowing directly outdoors. Plant seeds about one inch deep; they typically germinate within seven to ten days under these conditions.
Space plants four to six inches apart in rows to allow proper air circulation and growth without stunting. Since this is a bush bean, you likely do not need trellising or extra support. Water one inch per week while avoiding overhead watering to prevent leaf issues. Apply mulch around the base to retain moisture and suppress weeds.
Watch for common pests like bean beetles, aphids, spider mites, and cutworms, as well as diseases such as mosaic virus and bacterial blight. Prevention involves good spacing and avoiding overhead watering. Harvest tender pods fifty to fifty-five days after sowing when they are young and crisp.
When to Plant Topcrop Bush Bean
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | — | July – August | September – August |
| Zone 2 | — | June – August | September |
| Zone 3 | — | June – July | August – October |
| Zone 4 | — | June – July | August – October |
| Zone 5 | — | May – June | August – September |
| Zone 6 | — | May – June | July – September |
| Zone 7 | — | April – June | July – August |
| Zone 8 | — | April – May | June – August |
| Zone 9 | — | March – April | May – July |
| Zone 10 | — | February – April | May – June |
| Zone 11 | — | January – March | April – May |
| Zone 12 | — | January – March | April – May |
| Zone 13 | — | January – March | April – May |
Companion Plants for Topcrop Bush Bean
✓ Good companions
Deters aphids, spider mites, and thrips that commonly attack beans
Loosen soil for bean roots and beans fix nitrogen that carrots can utilize
Provides natural support structure and beans fix nitrogen for corn
Shallow roots don't compete and benefits from nitrogen fixed by beans
Repels bean beetles, aphids, and nematodes while attracting beneficial insects
Acts as trap crop for aphids and cucumber beetles while attracting pollinators
Quick-growing companion that breaks up soil and deters bean beetles
Ground cover reduces weeds and retains soil moisture for beans
✗ Keep away from
Produces allelopathic chemicals that inhibit bean growth and development
Can stunt bean growth and development through root competition and chemical interactions
Allelopathic compounds inhibit bean germination and growth
Nutrition Facts
Per 100g serving (USDA FoodData Central)
