Shiso Plants

Out of stock
£14.50
( / )
Out of stock
£14.50
( / )
Out of stock
£14.50
( / )
Out of stock
£9.00
( / )
Out of stock
£14.50
( / )
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Frequently asked questions

Shiso is usually grown as a warm-season annual in the UK. It thrives from late spring to summer and into early autumn, but it does not tolerate frost. Most gardeners replant each year for consistent flavour and leaf quality.

If flower heads are left in place, mature plants can drop seed and reappear the following season in mild conditions. However, for controlled growth and reliable flavour, many growers prefer to start with fresh young plants each year.

Green varieties are often described as sharper and more aromatic, while purple shiso plants tend to be milder, with a smoother herbal flavour and reduced peppery bite. Growing both allows you to compare them in the garden and kitchen. We also offer bi-colour plants, so you can have both in one plant!

Allow around 30–40cm between plants to give each one room to branch and develop a full canopy of leaves. Good airflow helps keep growth healthy and reduces the chance of mildew during humid spells.

Shiso belongs to the mint family (Lamiaceae), which explains its square stems and aromatic leaves. Although the flavour is unique, its growth habit shares similarities with other members of this fragrant herb group.

Shiso can be grown indoors in bright conditions, ideally near a sunny window. Good airflow and careful watering are important. Growth may be slower than outdoors, but leaves can still be harvested once the plant is established.

Shiso plants are seasonal and are typically ready to purchase from June onwards, once growing conditions are reliably warm. If a variety is currently out of stock, you can use the “Notify me when available” button on the product page to receive an alert as soon as it returns.

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