How Long Does It Take for Herbs to Fully Mature? [Facts & Figures]

Are you wondering how long it takes for your indoor herb garden to fully mature? This post contains all the facts you need to know about planting depth, germination time and much more.
How Long Does It Take for an Indoor Herb Garden to Fully Mature?

Are you wondering how long it takes for your indoor herb garden to fully mature? The answer depends on the herb you are growing.

In this article, we provide the germination time, seed planting depth, temperature range for optimal germination, optimal number of hours of sunlight required per day, outdoor plant spacing, outdoor pot size, how much watering seedlings need for germination, how many days until plants reach maturity, and companion planting based on sun, soil, and watering requirements for seven popular herbs: parsley, basil, dill, lavender, mint, thyme, and chives.

Parsley

parsley in concrete pot
  • Germination time: 14-21 days
  • Seed planting depth: 1/4 inch
  • Temperature range for optimal germination: 70-85°F
  • Optimal number of hours of sunlight required per day: 6-8 hours
  • Outdoor plant spacing: 6-8 inches
  • Outdoor pot size: 8-10 inches
  • Indoor plant spacing: 6-8 inches
  • Indoor pot size: 8-10 inches
  • How much watering do seedlings need for germination: Keep soil moist but not waterlogged
  • How many days until plants reach maturity: 70-90 days
  • Companion planting: Plant with tomatoes, peppers, and carrots

Basil

basil in bucket
  • Germination time: 5-10 days
  • Seed planting depth: 1/4 inch
  • Temperature range for optimal germination: 70-85°F
  • Optimal number of hours of sunlight required per day: 6-8 hours
  • Outdoor plant spacing: 12-18 inches
  • Outdoor pot size: 8-10 inches
  • Indoor plant spacing: 12-18 inches
  • Indoor pot size: 8-10 inches
  • How much watering do seedlings need for germination: Keep soil moist but not waterlogged
  • How many days until plants reach maturity: 60-90 days
  • Companion planting: Plant with tomatoes, peppers, and oregano

Dill

dill herb in dark cement pot
  • Germination time: 10-14 days
  • Seed planting depth: 1/4 inch
  • Temperature range for optimal germination: 60-70°F
  • Optimal number of hours of sunlight required per day: 6-8 hours
  • Outdoor plant spacing: 12-18 inches
  • Outdoor pot size: 8-10 inches
  • Indoor plant spacing: 12-18 inches
  • Indoor pot size: 8-10 inches
  • How much watering do seedlings need for germination: Keep soil moist but not waterlogged
  • How many days until plants reach maturity: 70-90 days
  • Companion planting: Plant with cucumbers, lettuce, and onions

Lavender

Lavender in square pot
  • Germination time: 14-21 days
  • Seed planting depth: 1/8 inch
  • Temperature range for optimal germination: 70-75°F
  • Optimal number of hours of sunlight required per day: 8-10 hours
  • Outdoor plant spacing: 12-18 inches
  • Outdoor pot size: 12-16 inches
  • Indoor plant spacing: 12-18 inches
  • Indoor pot size: 12-16 inches
  • How much watering do seedlings need for germination: Keep soil moist but not waterlogged
  • How many days until plants reach maturity: 90-120 days
  • Companion planting: Plant with rosemary, sage, and thyme

Mint

mint in plastic pot
  • Germination time: 10-15 days
  • Seed planting depth: 1/4 inch
  • Temperature range for optimal germination: 65-75°F
  • Optimal number of hours of sunlight required per day: 12-16 hours
  • Outdoor plant spacing: 18-24 inches
  • Outdoor pot size: 12-16 inches
  • Indoor plant spacing: 18-24 inches
  • Indoor pot size: 12-16 inches
  • How much watering do seedlings need for germination: Keep soil moist but not waterlogged
  • How many days until plants reach maturity: 90-120 days
  • Companion planting: Plant with basil, chamomile, and parsley

Thyme

Thyme in terracota pot
  • Germination time: 7-14 days
  • Seed planting depth: 1/4 inch
  • Temperature range for optimal germination: 70-75°F
  • Optimal number of hours of sunlight required per day: 6-8 hours
  • Outdoor plant spacing: 12-18 inches
  • Outdoor pot size: 8-10 inches
  • Indoor plant spacing: 12-18 inches
  • Indoor pot size: 8-10 inches
  • How much watering do seedlings need for germination: Keep soil moist but not waterlogged
  • How many days until plants reach maturity: 90-120 days
  • Companion planting: Plant with basil, oregano, and rosemary

Chives

chives in Glazed ceramic pot
  • Germination time: 10-14 days
  • Seed planting depth: 1/4 inch
  • Temperature range for optimal germination: 60-70°F
  • Optimal number of hours of sunlight required per day: 6-8 hours
  • Outdoor plant spacing: 6-8 inches
  • Outdoor pot size: 8-10 inches
  • Indoor plant spacing: 6-8 inches
  • Indoor pot size: 8-10 inches
  • How much watering do seedlings need for germination: Keep soil moist but not waterlogged
  • How many days until plants reach maturity: 80-100 days
  • Companion planting: Plant with carrots, parsley, and tomatoes

Remember, the time it takes for an indoor herb garden to fully mature depends on the herb you are growing and how you care for it.

According to Kelly Riley at EatingWell: “When growing herbs indoors, it’s important to choose the right container. Make sure the container has drainage holes to prevent water from pooling at the bottom and causing root rot.”

By following the guidelines on sun, soil, and watering requirements, you can ensure that your indoor herb garden thrives.

Frequently Asked Questions

How often should I water my indoor herb garden?

Water your indoor herb garden when the top inch of soil feels dry to the touch.

Can I use regular potting soil for my indoor herb garden?

Yes, you can use regular potting soil for your indoor herb garden, but make sure it is well-draining and does not contain any added fertilizers.

Can I grow multiple herbs in the same pot?

Yes, you can grow multiple herbs in the same pot as long as they have similar sun, soil, and watering requirements.

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