How to Grow Caraways USA | Complete Growing Guide

Quick Facts

Factor	Value
Soil pH	6 - 7.5
Sunlight	6-6 hours direct sun
Soil texture	clay or loam, prefers light fertile soil (RHS)
Drainage	well-drained
Lifecycle	biennial
Edible parts	seeds

Soil & Growing Conditions

Water: well-drained, tolerates heavier soils (RHS)

Soil pH range

6 7.5

Span reflects genuine variation between the cited authorities, not a single agreed figure.

Growth Stages

Stage	BBCH	Notes
Sowing	0	Sow seed directly; transplant seedlings only while small to avoid premature bolting, as the plant dislikes transplanting (RHS).
Foliage growth (year one)	3	Develops finely divided, aromatic foliage in its first year as a biennial (RHS).
Flowering (year two)	6	Small white flowers appear in umbels in its second year (RHS).
Seed set and harvest	8	Leave plants to set seed; harvest the strongly aromatic fruits once ripe (RHS).

Harvest & Storage

When to pick: Leave plants to set seed; harvest the strongly aromatic fruits (seeds) once ripe, the plant's primary culinary product (RHS).

Caraway, Grown for its Aromatic Seed

Grown for its aromatic seed

RHS: caraway produces strongly aromatic fruits, commonly called seeds, which are the plant's primary culinary product.

A biennial, not an annual

An upright biennial herb -- foliage develops in year one, flowers and sets seed in year two, then the plant is left to complete its cycle.

Finely divided, aromatic foliage

RHS: finely divided, aromatic foliage, closely related to but genuinely distinct from the site's other Apiaceae crops -- carrot, parsnip, fennel, and skirret.

Dislikes transplanting

Sow seed directly; the plant generally dislikes transplanting, though seedlings can be moved while still small to avoid premature bolting.

Generally pest and disease-free

RHS reports caraway as generally pest-free and disease-free -- one of the lowest-maintenance herbs on this site.

References

1. RHS (Royal Horticultural Society) - Carum carvi | caraway

   An upright biennial herb with finely divided, aromatic foliage and small white flowers in umbels, producing strongly aromatic fruits (seeds). Native to temperate Europe and Asia, also native to GB/Ireland. Hardiness H7 (below -20C). Full sun, benefiting from south-, west- or east-facing aspects. Soil: clay, loam; well-drained; acid, alkaline or neutral pH; tolerates heavier soils despite a preference for light, fertile soil. Height/spread 0.1-0.5m. Time to maturity 1-2 years. Sow seed directly; transplant seedlings when small to avoid premature bolting, though the plant dislikes transplanting generally. Generally pest-free and disease-free. Leave plants to set seed; suits cottage gardens and flower borders. Aromatic fruits (seeds) are the primary culinary component.

1 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.