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Absinthe

Herb
Cool-season herbs in early spring and fall; tender herbs after the last frost.
Full sun to part shade
Limited info

Also known as: Artemisia absinthium · Common Wormwood

We only have the basics on this one

Absinthe is in our library, but nobody has written it up in detail yet, so the growing notes below are general advice for this kind of plant rather than facts checked for this species. Browse the full plant library for pages with complete growing guides.

When & where

Season
Cool-season herbs in early spring and fall; tender herbs after the last frost.
USDA zones
Annual herbs grow in any zone in summer; perennial herbs are usually hardy in zones 5–9.
Sun
Full sun to part shade
Start indoors
6–8 weeks before last frost.
Direct sow outdoors
After the last frost once soil reaches 60°F (16°C).
Days to harvest
30–60 days to first cutting.

Germination

Germination time
7–21 days.
Soil temperature
65–75°F (18–24°C)

Spacing & depth

Sow depth
1/8–1/4 in (3–6 mm); tiny seed such as thyme or marjoram is pressed onto the surface and left uncovered.
Seed spacing
1–2 in (2.5–5 cm) apart, thinned after germination.
Mature plant spacing
8–18 in (20–45 cm) apart depending on the herb — basil and parsley 10–12 in, sage and rosemary 24–36 in.
Row spacing
12–18 in (30–45 cm).

How to plant

Sow shallowly in a light mix, keep evenly moist and give the strongest light you have. Pinch the growing tip early to build a bushy plant and keep cutting so it never sets seed.

Grower's tip

Artemisia absinthium — Absinthe, Common Wormwood.

General care for herbs

This part is general advice for this type of plant, not written specifically for Absinthe. Treat it as a starting point.

Soil preferences

Soil type

Light, well-drained loam. Most culinary herbs suffer in soggy soil.

pH range

6.0–7.5 (neutral)

Amendments

A single fork of finished compost at planting is plenty — over-feeding weakens flavor.

Watering

Frequency

Consistent moisture while young; let the top inch dry between waterings once established.

Method

Water at the base in the morning to keep leaves dry and prevent mildew.

Over vs. under

Overwatered: yellow lower leaves, damp-smelling soil, wilt that doesn't rebound. Underwatered: crispy tips, purple stems, sudden bolting.

Top-water or bottom-water?

Either works — Bottom-water seedlings and potted herbs (set the pot in a tray of water 10–15 min, then drain). Once established, top-water at the soil line. Keep foliage dry on Mediterranean herbs (rosemary, sage, thyme, lavender, oregano) to prevent mildew.

Temperature tolerance

Ideal daytime air temp

65–85°F (18–29°C) ideal

Ideal nighttime air temp

55–65°F (13–18°C)

Frost sensitivity

Most annual herbs are frost-tender; perennial herbs (sage, thyme, oregano, mint) tolerate frost once established.

Container growing

Container-suitable?

Yes — great in containers

Recommended pot size

6–10 in (15–25 cm) wide, minimum 6 in deep

Notes

Herbs thrive in pots — group by water needs (Mediterranean herbs on the drier side, basil/parsley/cilantro on the wetter).

Succession planting

Sow leafy herbs (basil, cilantro, dill, parsley) every 3–4 weeks for a steady supply.

Detailed harvesting

Pinch or snip stems just above a leaf pair — never strip a plant of more than one third at a time. Harvest before flowering for peak flavor.

Post-harvest storage & preservation

Air-dry small bundles upside-down in a dark airy spot, or freeze chopped in olive oil in ice-cube trays. Store dried leaves whole in a jar; crush just before use.

Culinary, medicinal & other uses

Culinary flavoring — fresh in salads and finishing, dried in slow cooks and rubs. Many herbs (basil, mint, chamomile) also infuse oils, vinegars, or teas.

Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.

Seed saving

Pollination

Mostly insect-pollinated; some (basil, mint) self-pollinate.

Isolation needs

Isolate different varieties of the same species by 150 ft or cage/bag flower heads to keep strains true.

How to save

Let one plant flower fully; harvest brown, dry seed heads into a paper bag; rub free and store dry.

Your zone's planting calendar

Pick your USDA hardiness zone and we'll estimate the key dates for absinthe in your area. These are regional averages — always check your own last-frost forecast before sowing.

From your kitchen — grow absinthe from what you already have

Most annual and biennial herbs give seed if you stop harvesting one plant and let it flower.

  1. 1Choose your best-flavored, latest-to-bolt plant to be the seed parent.
  2. 2Let it flower, then wait for the seed heads to dry brown and papery on the plant.
  3. 3Cut whole stems into a paper bag before they shatter.
  4. 4Rub or crumble the heads to release seed; sieve out the chaff and store dry in an envelope.

Storage: Most herb seed stays viable 2–4 years dry.

My Absinthe notes

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