periwinkle
Answered from our own 538-crop reference and 24,425 guides. No figure is invented — every number traces to that reference, and every passage below is quoted from a guide published here.
From our crop reference
Vinca (Periwinkle) is a flower crop, grown in the kharif season. Sow it in Jun–Jul and expect to harvest in 70–90 days. It wants a pH of 5.5–7.0 (slightly acid) and 20–32°C. Plant at 30 × 30 cm, allowing 0.3–0.5 kg of seed per hectare. A good crop returns around Ornamental. Watch for dieback, aphid.
Growing Vinca (Periwinkle)2 sentences from our guides, quoted exactly
It is a hardy, woody vine from the Dogbane family, a distant relative of the periwinkle.
Botanical Identity: Confederate Jasmine, also known as Star Jasmine, belongs to the Apocynaceae family, the same family as the humble Sadabahar (Periwinkle).
Found by keyword match. Nothing above was generated — every sentence is quoted from a published guide, and every figure comes from the 538-crop reference.