How to Plant Papilionaceae Lablab Seeds


Papilionaceae (known as Papilionoideae in some classification systems) is the scientific name of a subfamily of plants in the legume family, with flowers that resemble butterflies. Lablab is a genus (Lablab purpureus) within this subfamily and is commonly known as the hyacinth bean plant. This herbaceous perennial vine is heavy in maturity and needs a strong support structure on which to climb. Lablab is cold-intolerant and thrives in USDA Hardiness Zones 10 and 11. Start the seeds six to eight weeks prior to the last frost.

Step 1

Place the lablab seeds in a shallow bowl and pour warm water over them. Allow them to soak for two hours.

Step 2

Fill the planting pot to within 1/4 inch of the rim with moist potting soil.

Step 3

Place two lablab seeds on the surface of the soil, 1 inch apart, and cover them with 1/2 inch of soil. If planting more than two seeds use additional pots, with two seeds per pot.

Step 4

Water the soil carefully so as not to disturb the seeds. When the pot has drained completely, place it in an area that receives full sun for at least six hours per day. Keep the soil moist at all times. The lablab seeds should germinate within two to three weeks.

Things You'll Need

  • Planting pot
  • Potting soil


  • Encylopaedia Britannica: Papilionoideae
  • Missouri Botanical Garden: Lablab Purpureus
  • "Taylor's Master Guide to Gardening"; Roger Holmes, Rita Buchanan; 2001
  • Plants For A Future: Lablab Purpureus
Keywords: plant lablab seeds, plant Papilionaceae lablab, grow lablab vine

About this Author

Victoria Hunter has been a freelance writer since 2005, specializing in gardening-related topics and the real estate industry. She is a former broadcaster and real estate agent who has provided audio and written services to small businesses and large corporations worldwide. She writes for, GardenGuides and ProFlowers, among others. Hunter holds a Bachelor of Arts in English/creative writing.