- Name: Rattlesnake Pole Bean - Scientific Name: Phaseolus Vulgaris - Color: Green Pods With Purple Splotches - Plant Seeds: When Soil Temp Warms To 60f - Harvest: 73 Days - Hardiness Zone: Annual - Plant Height: 6 - 8' - Plant Spacing: 18 - 24" - Light Requirements: Sun - Soil & Water Preferences: Average - Quantity: 50 Seeds - Other: Rattlesnake Is An Heirloom Pole Bean With Sweet, Tender 7" Long Pods Full Of Brown Speckled Seeds. This Snap Bean Has Stringless Edible Green Pods Splotched With Beautiful Purple Streaks. Rattlesnake Beans Can Also Be Used As A Dried Bean For Soups, Etc, Or Canned Or Frozen. The Plants Are Heavy Producers That Tolerate Heat, Humidity, & Sandy Soil Well.