Zanthoxylum simulans – Szechuan Pepper tree seeds

Additional Info

How to Use Sichuan Pepper: Leaves, Shell & Peppercorn!:

Cold stratifying seeds using the paper towel method:

Studies:

Zanthoxylum Genus as Potential Source
of Bioactive Compounds

Description

Once upon a time, I lived in Beijing for a few years.  The people, the culture, the food, the history – amazing.  While I miss many things, the thought of real Chinese food is one that always gets me salivating and you can’t think about Chinese food without thinking about Szechuan pepper – the spicy, numbing, tingly sensation that takes so many dishes to the next level.  As soon as I saw that these trees would grow in my climate, I knew that I had to import these seeds.

Besides I’ve got a goal to get as many of our food products off of our own land as possible, and a number of the traditional peppercorn plants simply won’t grow in my climate.

PS – it’s the hull of the Szechuan pepper that you use – not the actual peppercorn itself.

The technical bits –

Zanthoxylum simulans is a hardy, deciduous shrub or small tree grown for its aromatic seed husks.  Plants reach 3–6 metres in height, forming a dense, branching habit. They prefer full sun and well-drained soil, though they are adaptable to a range of conditions and tolerant of drought once established. Being hardy to around -20°C, makes it suitable for just about all areas of the country.

It’s dioecious, meaning male and female flowers are borne on separate plants. For fruit production, both sexes must be present. When growing from seed, plant at least six to eight seedlings to increase the likelihood of getting both male and female plants to ensure successful pollination.

Germination and Cold Stratification:

Seeds require cold, moist stratification for 2–3 months to break dormancy. Sow into moist, well-draining medium and keep at 1-5°C for 8-12 weeks. After chilling, move to warmth (around 20°C) for germination. Germination is often slow and uneven, taking several weeks to months.

Outdoor Stratification Tip:

In regions with consistent winter cold, seeds can be stratified outdoors. Sow into pots or trays in autumn, cover lightly with soil, and place them somewhere cool and rodent-proof. The natural cold of winter will help break dormancy in time for spring germination.