How to Grow Herb varieties

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Herb varieties

Various species (Ocimum, Petroselinum, Mentha, Thymus, Origanum, Salvia, and others)

herb

Herbs are a diverse group of plants valued for their aromatic leaves, seeds, and flowers used in cooking, medicine, and household applications. They range from tender annuals like basil to hardy perennials like thyme and oregano. Most herbs are easy to grow and thrive in containers or garden beds with minimal care.

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Example Herb varieties timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Herb varieties

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Herb varieties

    Around May 8

    ≈ 21 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Herb varieties dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily (most herbs); some tolerate partial shade (mint, parsley, chives)
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Water: Moderate, consistent moisture without waterlogging. Allow soil to dry slightly between waterings. Reduce watering in winter for perennials.
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Spacing: 6-18 inches depending on variety (basil 6-8, oregano 12-18, thyme 12-15) inches
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Days to maturity: 21-90 days depending on herb type and harvest method
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Planting depth: 0.25 inches for seeds; transplants at same depth as in container

Soil

Type: Well-draining loamy or sandy soil
pH: 6.0-7.5
Amendments:
Compost aged manure perlite or sand for drainage peat moss or coconut coir

Growing Zones

Find your zone →

Varies by herb type. Tender annuals (basil, cilantro) thrive in zones 3-11 when planted after frost. Hardy perennials (thyme, oregano, sage) excel in zones 3-9.

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

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Growth Stages

1

Seedling

2-3 weeks

Tiny sprouts with first true leaves emerging 7-14 days after germination. Very delicate and small.

Keep soil consistently moist but not waterlogged. Provide bright light (grow lights or sunny window). Thin seedlings to proper spacing once they have 2-3 true leaves.

2

Vegetative Growth

3-6 weeks

Rapid leaf production with branching stems developing. Plant becomes bushy and established (for annuals) or begins spreading (for perennials).

Pinch off top 1/4 inch of stems weekly to encourage bushiness. Water when top inch of soil is dry. Begin light harvesting once plant has 6-8 leaves.

3

Pre-flowering

1-2 weeks

Buds begin to form at stem tips. Leaves may be slightly smaller as plant diverts energy to flower production.

Pinch off flower buds on tender annuals like basil to extend leaf harvest. For herbs grown for seeds (cilantro, dill), allow flowering to proceed.

4

Flowering & Seed Production

2-4 weeks

Flowers bloom in various colors and shapes. Seeds develop if flowers are pollinated. Foliage quality often declines as flavor concentrates in flowers and seeds.

Harvest flowers for culinary/medicinal use. Cut seed heads when brown but before shattering. Deadhead to redirect energy back to leaves if needed.

5

Dormancy (Perennials) or End of Season (Annuals)

Varies seasonally

Tender annuals decline with frost or heat. Perennials die back to ground or go semi-dormant in winter.

For annuals, pull plants and compost. For perennials, cut back dead growth in spring, reduce watering in winter, mulch in cold zones.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel (inhibits most herbs) Kochia (allelopathic)

Common Pests

  • Spray with water, use insecticidal soap, release ladybugs, neem oil

  • Increase humidity, spray leaves with water, neem oil, miticide if severe

  • Yellow sticky traps, spray with insecticidal soap, neem oil, reflective mulch

  • Improve air circulation, remove infected leaves, baking soda spray, sulfur dust

  • Remove infected foliage, improve drainage, copper fungicide, avoid overhead watering

  • Handpick at night, beer traps, copper tape barriers, diatomaceous earth

Uses

🍳

Fresh cooking & flavoring

Culinary

Fresh herbs elevate dishes with vibrant flavor. Use basil for pasta, cilantro for salsas, parsley for garnish, oregano for Mediterranean dishes, and thyme for soups and roasts. [source]

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Herbal teas & remedies

Medicinal

Many herbs have traditional medicinal properties. Mint aids digestion, chamomile promotes relaxation, thyme soothes coughs, and sage supports throat health. [source]

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Drying & preservation

Household

Dried herbs provide year-round flavor and can be stored for months. Hang bundles upside down in a warm, dry place, or use a dehydrator. [source]

🎨

Crafts & arrangements

Craft

Fresh herb bundles, dried wreaths, and potpourri add natural beauty to homes. Lavender, mint, and rosemary are popular for fragrant crafts. [source]

🦋

Pollinator & beneficial insect support

Wildlife

Herb flowers attract bees, butterflies, and beneficial insects. Allow some herbs to flower for pollinator support and ecosystem health. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Begin harvesting once herbs have 6-8 leaves (usually 4-6 weeks). Pinch off top 1/4 inch for bushy growth. Harvest in morning after dew dries but before heat of day for maximum flavor. Never remove more than 1/3 of plant at a time. Herbs grow back quickly with regular harvesting.

Fun Facts

  • 🌱 Many culinary herbs are Mediterranean natives evolved to thrive in rocky, poor soil—they often taste more intense and fragrant when grown in lean, well-draining conditions than in rich, heavily amended soil.
  • 🌱 Pinching basil and other tender herbs regularly causes them to branch more, doubling or tripling overall leaf production compared to plants allowed to grow unpinched.
  • 🌱 Some herbs like mint and oregano spread vigorously via runners and self-seeding; planting them in containers or isolated beds prevents them from overtaking the garden.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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