Herb Seeds Open-pollinated

Basil Thai Siam Queen

Award-winning Thai basil - bold anise flavour and showy purple flowers

£1.95approx. 100 seeds

The aristocrat of Thai basils - an All-America Selections winner with bold sweet-spicy anise flavour, larger leaves, and strikingly ornamental purple flower spikes. As beautiful in the border as it is essential in the kitchen.

Sowing months
JanFebMarAprMayJunJulAugSepOctNovDec
Harvest months
JanFebMarAprMayJunJulAugSepOctNovDec
Height
30cm-45cm
Spread
25cm
Spacing
30cm
Position
Full sun, warm and sheltered. Greenhouse, sunny border, conservatory or windowsill. Tender annual.
Soil
Rich, fertile, moist but well-drained.
Grow guide
How to grow Basil Thai Siam Queen
Read the full guide →
About this variety

The aristocrat of the Thai basils, and an All-America Selections winner. Siam Queen takes what is good about traditional Thai basil and makes it bigger — leaves close to twice the size of older strains, more vigour, more uniformity, and better resistance to bolting in heat.

The flavour is correspondingly bolder: a powerful sweet-spicy fragrance of anise and clove with a citrus edge, and it holds through cooking rather than fading in the pan.

It is also unusually handsome for a culinary herb. Deep green leaves on purple-flushed stems, topped through late summer with showy spikes of purple-lavender flowers that stand well above the foliage and draw bees and butterflies. Few herbs earn a place on looks alone; this one comes close.

Plant alongside

Basil Thai Siam Queen pairs beautifully with these kitchen garden companions