Thyme is a compact woody hydroponic herb best suited to free-draining drip, substrate, or ebb-and-flow systems, where bright light, moderate feeding, pruning.
Varieties
Variety
Latin Name
Common thyme
Thymus vulgaris
Lemon thyme
Thymus citriodorus
Creeping thyme
Thymus serpyllum
French thyme
Thymus vulgaris
Silver thyme
Thymus vulgaris
Lookalikes
Lookalike
Latin Name
Description
Oregano
Origanum vulgare
Related Mediterranean herb with larger leaves and a more pungent oregano aroma.
Sweet marjoram
Origanum majorana
Similar small aromatic leaves but generally softer and sweeter.
Edible Parts
Part
Use
Description
Toxicity
Leaves
Primary edible culinary herb used fresh or dried.
Harvest leafy shoot tips before flowering for best flavor.
Generally edible in normal culinary amounts; concentrated thyme oil should be used cautiously.
Tender stems
Culinary flavoring, especially bundled in stocks or herb sachets.
Young stems can be chopped or cooked whole and removed.
Generally edible in normal culinary amounts.
Propagation
Part
Method
Description
Stem cuttings
Rooting semi-soft cuttings in moist media
Take non-flowering cuttings and root in lightly moist, well-aerated substrate.
Seed
Shallow sowing in starter plugs
Sow tiny seeds shallowly on moist media and provide light and warmth.
Growing Parameters
Parameter
Range
Optimal
Unit
pH
6.0 - 7.5
6.2 - 6.8
pH
Electrical conductivity
0.8 - 2.0
1.2 - 1.6
mS/cm
Air temperature
15 - 30
20 - 26
°C
Daily light integral
12 - 24
16 - 20
mol/m²/day
Cultivation
Aspect
Compatibility
Notes
Drip irrigation with inert media
High
Best suited with free-draining media; avoid constant saturation.
Ebb and flow
High
Works well when flood cycles are brief and media drains thoroughly.
Deep water culture
Low
Less suitable because thyme is drought-tolerant and dislikes constantly wet roots.
Identification
Growth habit: Low-growing aromatic perennial herb with many small woody stems and compact branching growth.
Leaves: Tiny opposite leaves are narrow to oval, green to gray-green, and strongly aromatic when rubbed.
Stems: Young stems are tender and square, while older stems become woody.