Coffea arabica 'Lempira' is a dwarf Catimor cultivar originating from Honduras, known for its disease resistance, particularly to coffee leaf rust, and its adaptation to warmer climates and acidic soils. This variety exhibits slow seed germination, typically requiring 30-90 days depending on temperature and seed viability, with germination taking longer at cooler temperatures or with older seeds. Fresh, properly stored seeds are essential for successful germination of this commercially important arabica variety.
Before sowing
Use fresh, viable seeds from healthy coffee cherries. Seeds are intermediate-type and lose viability quickly; use immediately after harvest or store under controlled humidity (17-22% moisture content) at 15°C for no more than 6 months.
Sowing
What to expect
Tips
1) Always use fresh seeds harvested within the last 3 months; seeds lose viability rapidly and should not be stored beyond 6 months even under optimal conditions. 2) Maintain consistent soil moisture—moist but never waterlogged, as excess moisture promotes damping-off fungal diseases. 3) Use a humidity dome or clear plastic cover to maintain moisture; ventilate briefly once weekly. 4) Keep germination environment warm (70-80°F / 21-27°C) and stable; use a heat mat if necessary. 5) Apply bottom heat to accelerate germination speed. 6) Plant at ½ inch depth with seed slightly pressed into soil. 7) Germination is slow—patience is essential; seeds may take 60-90 days at cooler temperatures. 8) Once seedlings emerge and develop several sets of true leaves, gradually acclimate to lower humidity and brighter light (avoiding harsh direct sun). 9) Lempira shows good rust resistance in field conditions, making it valuable for commercial cultivation.
Sources: Plantflower Seeds (plantflowerseeds.com), University of California Cooperative Extension, FAO Arabica Coffee Manual, Agriculture Institute guides, research on Coffea arabica germination biology, and published studies on seed viability and storage
