Best Herbs to Grow in Idaho
Idaho spans USDA Zones 3–7, typically Zone 5. We've broken out 84 herb varieties by zone — pick your zone below or find the right varieties for your specific part of the state.
Varieties
84
for Idaho
USDA
Zones 3–7
120–210 days season
Beginner
77
easy to grow
Heirloom
70
heritage varieties
Idaho in USDA Zones 3–7
Idaho spans Zones 3–7. Variety lists below are organized by zone — start with your zone for the most accurate recommendations.
Growing Herbs in Idaho
Zone 5 offers herb gardeners a sweet spot for growing - enough summer heat to develop intense flavors in Mediterranean herbs like basil and oregano, yet cool enough nights to keep leafy herbs like parsley and cilantro from bolting too quickly. The key challenge here is the narrow window between that April 30th last frost and October's first freeze, which means choosing varieties that either establish quickly or handle cooler temperatures gracefully. Cold-hardy perennials like thyme, sage, and chives become your garden's backbone, returning reliably each spring, while tender annuals like basil need strategic timing to maximize their productive window. The secret to Zone 5 herb success lies in selecting varieties bred for shorter seasons and understanding which herbs to direct seed versus transplant. Cool-season herbs like cilantro and dill actually prefer Zone 5's moderate summers over blazing hot climates, while heat-lovers like basil will thrive if you give them a proper head start indoors and protection during cool spells.
Zone 5 Herbs for Idaho★ Most of ID
82 varieties · Last frost April 30 · 155-day season
Zone 4 Herbs for Idaho
73 varieties · Last frost May 10 · 135-day season
Zone 6 Herbs for Idaho
83 varieties · Last frost April 15 · 180-day season
Zone 3 Herbs for Idaho
63 varieties · Last frost May 15 · 120-day season
Zone 7 Herbs for Idaho
84 varieties · Last frost April 1 · 210-day season
Zone 5 Growing Tips for Idaho
Start your heat-loving herbs indoors 6-8 weeks before your last frost date - that means getting basil, oregano, and tarragon seeds started by mid-March. Don't rush to transplant them outside; wait until soil temperatures consistently hit 60°F, usually 1-2 weeks after your average last frost. Cool-season herbs like cilantro, dill, and parsley can go directly in the ground 2-3 weeks before last frost, and you'll want to make succession plantings every 3 weeks through summer to avoid gaps when they bolt. Your perennial herbs - thyme, sage, oregano, and chives - are best planted as transplants in late spring so they have a full season to establish strong root systems before winter. For tender perennials like French tarragon and lavender, choose the most protected spot in your garden with excellent drainage, as wet winter soil kills more herbs in Zone 5 than cold temperatures alone. Consider portable cold frames or row covers to extend your season on both ends - they can give you an extra 2-4 weeks of growth in spring and fall, which makes a huge difference with a 155-day growing window.