How Long Do Herbs Take to Grow?

Quick answer with complete timeline guide

Quick Answer

Most herbs take 2-4 weeks to germinate and 6-8 weeks to reach harvest size from seed. Fast-growing herbs like cilantro and dill can be harvested in 3-4 weeks, while basil takes 4-6 weeks. Woody herbs like rosemary and lavender are much slower, taking 3-4 months to establish from seed.

5-14 Days
Typical germination
6-8 Weeks
First harvest
4-6 Months
Continuous harvest

Herb Growing Timeline Chart

HerbGerminationFirst HarvestSpeed
Cilantro7-10 days3-4 weeksFast
Dill7-14 days3-4 weeksFast
Basil5-10 days3-5 weeksFast
Chives10-14 days4-6 weeksFast
Parsley14-21 days6-8 weeksMedium
Mint10-15 days6-8 weeksMedium
Oregano10-15 days6-8 weeksMedium
Thyme14-21 days8-12 weeksSlow
Rosemary14-28 days12-16 weeksSlow
Lavender14-28 days12-16 weeksSlow

Herbs by Growing Speed

Fast (3-5 weeks)

  • Cilantro
  • Dill
  • Basil
  • Chives
  • Arugula (herb use)

Medium (6-8 weeks)

  • Parsley
  • Mint
  • Oregano
  • Sage
  • Tarragon

Slow (3-4 months)

  • Rosemary
  • Thyme
  • Lavender
  • Bay leaf
  • Lemon verbena

Factors That Affect Growing Time

Temperature: Herbs germinate faster in warm soil (65-75°F). Cold soil can add 1-2 weeks to germination time
Light: 6-8 hours of direct light speeds growth. Low light extends growing time significantly
Seed freshness: Fresh seeds germinate faster. Old seeds may take twice as long or fail entirely
Soil quality: Well-draining, fertile soil promotes faster root development
Starting method: Transplants are 6-8 weeks ahead of seeds from day one

Tips for Faster Herb Growth

Speed Up Germination

  • Use a heat mat (70-75°F)
  • Pre-soak hard seeds (parsley)
  • Cover with plastic for humidity
  • Use fresh seeds (less than 2 years)
  • Bottom water for even moisture

Speed Up Growth

  • Provide maximum light (8+ hours)
  • Use grow lights indoors
  • Fertilize lightly every 2 weeks
  • Keep temperatures optimal (65-75°F)
  • Transplant to larger pots promptly

Frequently Asked Questions

What is the fastest herb to grow from seed?

Cilantro and dill are the fastest herbs, ready for first harvest in 3-4 weeks from seed. Basil and chives follow at 3-5 weeks. These fast growers are perfect for impatient gardeners or quick succession planting.

How long does basil take to grow?

Basil seeds germinate in 5-10 days and reach harvest size in 3-4 weeks. You can start harvesting leaves when plants have 6+ sets of leaves, about 6-8 inches tall. Basil grows continuously for 4-6 months with regular harvesting.

Why are my herbs growing so slowly?

Slow herb growth is usually caused by insufficient light (herbs need 6+ hours daily), cold temperatures (most prefer 60-70°F), poor soil, or overwatering. Woody herbs like rosemary are naturally slow growers regardless of conditions.

Should I grow herbs from seed or buy transplants?

Fast-growing herbs (basil, cilantro, dill) are worth growing from seed. Slow herbs (rosemary, lavender, thyme) are better purchased as transplants since they can take 3-6 months from seed. Transplants give you a 6-8 week head start.

Related Questions

How often to water basil?Can herbs grow in shade?When to start seeds indoors?Best herbs for beginners

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