Best Alliums to Grow in Hawaii
Hawaii spans USDA Zones 10–13, typically Zone 10. We've broken out 44 allium varieties by zone — pick your zone below or find the right varieties for your specific part of the state.
Varieties
44
for Hawaii
USDA
Zones 10–13
320–365 days season
Beginner
29
easy to grow
Heirloom
26
heritage varieties
Hawaii in USDA Zones 10–13
Hawaii spans Zones 10–13. Variety lists below are organized by zone — start with your zone for the most accurate recommendations.
Growing Alliums in Hawaii
Zone 10's near-tropical climate presents unique opportunities and challenges for allium cultivation. With an average last frost of January 31 and first frost not arriving until December 15, you enjoy an exceptionally long 320-day growing season that allows for multiple plantings and extended harvests. However, the intense summer heat and high humidity can stress many traditional allium varieties, making heat tolerance and disease resistance crucial selection criteria.
The key to success in Zone 10 is choosing varieties that can handle your climate extremes while taking advantage of your extended growing windows. Short-day onions like Vidalia and Candy varieties are naturally suited to your latitude, while heat-tolerant garlic cultivars like Georgia Fire and Music Hardneck can thrive where northern varieties fail. Your climate also favors perennial alliums like chives and bunching onions, which can produce year-round once established.
Zone 10 Alliums for Hawaii★ Most of HI
44 varieties · Last frost January 31 · 320-day season
Zone 11 Alliums for Hawaii
44 varieties · Year-round growing
Zone 12 Alliums for Hawaii
44 varieties · Year-round growing
Zone 13 Alliums for Hawaii
44 varieties · Year-round growing
Zone 10 Growing Tips for Hawaii
In Zone 10, timing is everything with alliums. Plant garlic cloves in late October through November to give them the minimal chill period they need, then they'll be ready to harvest by late May before the most intense summer heat arrives. For onions, start short-day varieties from seed in September or October, or plant transplants in November through January. The mild winter temperatures allow for steady growth without the dormancy period northern gardeners experience.
Managing summer heat and humidity is your biggest challenge. Provide afternoon shade during the hottest months, ensure excellent drainage to prevent fungal issues, and consider raised beds to improve air circulation. Mulching heavily around plants helps keep soil temperatures down and retains moisture. During peak summer, focus on heat-lovers like Japanese Bunching Onions and established chive clumps that can handle the intensity.