My Guide on How to Grow Salsify

Most people don’t realise that salsify, despite its rather niche reputation, is actually one of the more forgiving root vegetables you can grow in the UK. I started growing this Victorian favourite after spotting it at a farmers’ market and I’ve been hooked ever since. The plant produces long, slender roots with a delicate oyster-like flavour that’s become a proper treat in my winter kitchen.

Salsify comes in two main varieties: white salsify (Tragopogon porrifolius) and black salsify or scorzonera (Scorzonera hispanica). Both grow brilliantly in British conditions, particularly in our cooler northern regions. What I appreciate most about salsify is that it doesn’t demand constant attention like some vegetables. Once established, it’s remarkably low-maintenance and will happily occupy a corner of your plot throughout the growing season.

This guide will take you through everything I’ve learnt about growing salsify successfully, from preparing your soil right through to harvesting those lovely roots. Whether you’re growing it for its culinary qualities or simply want to try something different, you’ll find it’s well worth the modest effort required. Read on to learn about how to grow salsify.

How to Grow Salsify

Getting your materials sorted before you start makes the whole process considerably easier. I’ve found that having everything to hand means you’re more likely to get the job done properly rather than making do with whatever’s lying about.

Essential Equipment and Materials

For soil preparation, you’ll need a decent spade or digging fork. Salsify develops long taproots, often reaching 20-30cm, so the soil needs working to a good depth. I use a fork because it breaks up compacted soil without creating hard pans underneath. A rake is essential for creating a fine tilth on the surface, which helps with germination.

You’ll also want some organic matter. Well-rotted compost or aged manure works brilliantly, though I prefer compost because fresh manure can cause the roots to fork and split. A soil pH testing kit is useful too, as salsify prefers slightly alkaline to neutral soil (pH 6.5-7.5). If your soil is acidic like mine in parts of Wales, you might need some garden lime to adjust it. You might also find from seed to harvest: your complete tomato growing guide helpful.

Seed Selection and Timing Considerations

Fresh seed is absolutely critical with salsify. The germination rate drops off quite dramatically after the first year, so always check the date on the packet. I’ve learnt this the hard way after a disappointing showing from old seed I’d kept from previous seasons.

For white salsify, ‘Mammoth’ is a reliable variety that produces good-sized roots. With scorzonera, ‘Russian Giant’ performs well in British conditions. You’ll need roughly 5-10g of seed per 10-metre row, though I always buy a bit extra because salsify germination can be somewhat unpredictable even with fresh seed.

Timing matters more than you might think. Salsify needs a long growing season of at least 120 days, so I sow mine between March and May. Earlier sowings in March give the best results in my experience, particularly in southern England where the growing season is longer. In Scotland or northern England, waiting until April when the soil has warmed up a bit makes more sense.

Step-by-Step Instructions

Preparing Your Growing Site

Choose your site carefully because salsify will be occupying it for the better part of a year. I prefer a spot that gets full sun, though salsify tolerates partial shade reasonably well. The crucial factor is soil drainage. Waterlogged conditions will rot the roots faster than you can say ‘crop failure’, so avoid any areas where water tends to sit after rain.

Start by clearing the area of weeds and debris. Then dig over the soil to a depth of at least 30cm, removing any stones as you go. Those long taproots I mentioned will fork around obstacles, giving you twisted, difficult-to-peel roots. I spent an afternoon once picking stones from my salsify bed in Devon, and the resulting straight roots made it entirely worthwhile.

Work in a 5cm layer of well-rotted compost, but keep it moderate. Over-rich soil produces leafy growth at the expense of roots. If your soil is heavy clay like much of the Midlands, consider adding horticultural grit to improve drainage. Sandy soils, common in parts of East Anglia, benefit from extra organic matter to help retain moisture.

Sowing Your Seeds

Wait until the soil temperature reaches at least 7°C before sowing. I use a soil thermometer, but if you don’t have one, a simple test is whether the soil feels comfortable when you place your hand on it for several seconds. Cold, clammy soil means wait a bit longer.

Create drills about 1.5cm deep using the edge of a hoe or a bamboo cane. Space your rows 30cm apart, which gives you enough room to hoe between them later. Sow the seeds thinly along the drill, aiming for one seed every 2-3cm. I know it’s tempting to sow more thickly ‘just in case’, but crowded seedlings are harder to thin out later.

Cover the seeds with soil and water gently using a fine rose on your watering can. Heavy watering can wash the seeds out of position or bury them too deeply. Label your rows because salsify seedlings look remarkably similar to grass when they first emerge, and I’ve nearly weeded mine out more than once.

Thinning and Ongoing Care

When the seedlings reach about 5cm tall, usually 2-3 weeks after sowing, it’s time to thin them. This is one of those jobs that feels counterintuitive but makes all the difference to your final harvest. Thin to 10cm apart initially, then to 15cm once they’re growing strongly. The thinnings are too small to eat, unfortunately, unlike beetroot thinnings.

Water during dry spells, particularly in the first few months when the plants are establishing. Salsify is relatively drought-tolerant once mature, but inconsistent watering causes woody roots. I aim for steady, even moisture rather than occasional heavy soakings. A mulch of compost or well-rotted leaf mould helps retain moisture and suppresses weeds.

Weeding is important because salsify isn’t particularly competitive. I hoe carefully between rows, being mindful not to damage the developing roots. Hand-weed close to the plants themselves. By midsummer, if you’ve kept on top of it, the salsify foliage should be dense enough to shade out most weeds naturally.

Monitoring for Problems

Salsify is generally pest-free, which is one of its great advantages. I’ve occasionally seen aphids on young shoots in May, but they rarely cause serious damage. A strong jet of water usually shifts them, or you can leave them for ladybirds and hoverflies to deal with.

White blister, a fungal disease that causes chalky white pustules on leaves, can affect salsify in damp conditions. I’ve seen it in Cornwall during particularly wet summers. Remove affected leaves promptly and ensure good air circulation between plants. Crop rotation helps prevent build-up of soil-borne diseases, though salsify isn’t part of any major crop family rotation, making it useful for filling gaps.

Harvesting Your Crop

This is where patience pays off. Salsify roots need the full growing season to develop properly, so resist the temptation to start lifting them early. I begin harvesting from October onwards, once the foliage starts to die back naturally. Frost actually improves the flavour, converting starches to sugars, so there’s no rush.

Use a fork rather than trying to pull the roots up, which almost always results in them snapping off below ground. Push the fork in about 15cm away from the plant and lever gently upwards. The roots are brittle, so work carefully. I’ve found that slightly damp soil makes lifting easier than bone-dry ground, so if we’ve had a dry autumn, I water the row the day before harvesting.

You don’t need to lift everything at once. Salsify stores perfectly well in the ground over winter, and I harvest mine as needed right through to March. In areas with very heavy clay that becomes waterlogged in winter, lifting and storing in boxes of sand in a shed or garage works better. The roots will keep for several weeks this way.

Common Mistakes to Avoid

The biggest mistake I see people make is sowing too late. Salsify absolutely needs that long growing season, and June sowings simply don’t give enough time for decent root development. I tried this once in Yorkshire and ended up with roots no thicker than my finger. Stick to March through May sowings, earlier in the south, slightly later further north.

Over-fertilising is another common problem. It seems logical that more nutrients would mean bigger roots, but salsify responds to rich soil by producing masses of leaf growth and forked, hairy roots. I use only moderate amounts of compost and avoid high-nitrogen feeds altogether. If you grow it in ground that was manured for a previous crop, that’s ideal.

Many gardeners fail to thin adequately because it feels wasteful. But crowded salsify produces thin, spindly roots that are barely worth harvesting. Those 15cm spacings I mentioned aren’t negotiable if you want worthwhile roots. I remind myself that one good-sized root is worth more than three small ones.

Trying to harvest too early is frustrating for everyone involved. Small roots aren’t just less economical, they also lack flavour. The distinctive taste salsify is known for only develops fully in mature roots. I mark my calendar with the earliest sensible harvest date and stick to it.

Finally, many people damage their roots during harvest because they don’t dig far enough away from the plant. Those taproots go straight down, and getting your fork too close means you’ll spear them. I’ve learnt to give a generous margin, even if it means more digging.

Expert Tips

One thing I’ve discovered through trial and error is that salsify actually produces two crops. If you leave a few plants in the ground through winter and into spring, they’ll send up flowering stems. The young flower buds can be steamed and eaten like asparagus. They’re genuinely delicious, with a similar but more delicate flavour than the roots. Not many people know about this secondary harvest.

The purple flowers that follow are beautiful too, and you can let a plant or two go to seed if you want to save your own. Just be aware that the seed loses viability quickly, so you’ll need to use it the following spring. I dry mine thoroughly and store it in paper envelopes in a cool, dark cupboard.

If you’re working with heavy soil, try growing salsify in raised beds. I’ve done this at several allotments around Birmingham, and the improved drainage makes a noticeable difference to root quality. You can fill the beds with a lighter soil mix that’s easier for the roots to penetrate.

Companion planting works nicely with salsify. I grow it alongside carrots and parsnips since they share similar growing requirements and timing. The fine, grassy foliage of salsify contrasts well with broader-leaved vegetables too, so it fits visually into mixed ornamental-edible beds.

For preparing salsify in the kitchen, peel it under running water rather than in a bowl. The roots oxidise and turn brown quickly once cut, though this doesn’t affect the taste. Some people drop peeled pieces into acidulated water (water with lemon juice added), but I find this unnecessary if you’re cooking them straightaway.

If you’re growing both white salsify and scorzonera, mark them clearly. The foliage looks similar, and you don’t want to mix them up. Scorzonera has black skin that’s harder to peel, though the flesh underneath is the same creamy white. I prefer the flavour of white salsify, but scorzonera has slightly better storage qualities.

Consider where you’re placing your salsify bed in relation to your crop rotation plan. Because it’s not in the brassica, allium, legume, or solanaceous families, it’s useful as a break crop. I often use the salsify bed to occupy ground that will grow brassicas the following year, helping to disrupt pest and disease cycles.

Frequently Asked Questions

How long does salsify take to grow from seed to harvest?

Salsify typically requires 120 to 150 days from sowing to harvest, which means it occupies your ground for most of the growing season. I sow mine in March or April and begin harvesting from October onwards. The exact timing depends on your local climate and when you sow. Southern growers can often harvest slightly earlier than those in Scotland or northern England. The roots continue developing right through autumn, so later harvests generally give you larger roots with better flavour, particularly after a few frosts.

Can I grow salsify in containers or pots?

Growing salsify in containers is possible but challenging because of the root depth required. You’d need a container at least 40cm deep to accommodate the long taproots properly. I’ve tried this with mixed results. Shallow containers produce stunted, forked roots that aren’t worth the effort. If you’re determined to grow it in pots, choose a deep container, use a good quality loam-based compost, and expect smaller roots than you’d get in open ground. Personally, I think there are better vegetables for container growing, but it can work if you haven’t got garden space.

What’s the difference between salsify and scorzonera?

White salsify (Tragopogon porrifolius) and scorzonera (Scorzonera hispanica) are related but different plants. White salsify has pale roots with white skin, whilst scorzonera has black skin. Both have similar growing requirements and that characteristic oyster-like flavour, though I find white salsify slightly sweeter. Scorzonera is marginally hardier and stores a bit better, but it’s more difficult to peel because of the dark skin. Some people grow scorzonera as a perennial, harvesting side roots whilst leaving the main plant in place, though I haven’t tried this myself.

Why didn’t my salsify seeds germinate?

Poor germination usually comes down to old seed. Salsify seed viability drops dramatically after the first year, so always use fresh seed from the current season. Cold soil is another common culprit. Sowing before the soil reaches at least 7°C means patchy germination at best. I’ve also had problems when I’ve sown too deeply. The seeds need to be no more than 1.5cm under the soil surface. Finally, if the soil dries out during germination, which takes about two weeks, the emerging seedlings will die. Keep the soil consistently moist but not waterlogged during this critical period.

Can salsify be left in the ground over winter?

Absolutely, and this is actually the best storage method for salsify. The roots are completely hardy and can stay in the ground right through winter, even in cold areas like the Pennines or Scottish Borders. I harvest mine as needed from October through to March. Frost improves the flavour by converting starches to sugars. The only exception is if you have very heavy, waterlogged soil that becomes inaccessible in winter. In that case, lift the roots in autumn and store them in boxes of damp sand in a cool, frost-free shed. They’ll keep for several weeks this way.

What should I do if my salsify roots are forked and twisted?

Forked roots usually result from obstacles in the soil or over-rich growing conditions. Stones, compacted soil layers, and fresh manure all cause the taproot to split and twist as it tries to grow around them. For next year, prepare your bed more thoroughly by removing stones and breaking up any compaction. Use well-rotted compost rather than fresh manure, and don’t over-fertilise. Unfortunately, there’s not much you can do about forked roots once they’ve developed, though they’re still perfectly edible, just more awkward to peel. The flavour isn’t affected.

Conclusion

Growing salsify has become one of my favourite autumn and winter projects. It’s not a demanding crop, fits nicely into quiet corners of the garden, and provides something genuinely interesting for the kitchen when other fresh vegetables are scarce. The long growing season means you need a bit of patience, but I’ve found that’s part of the pleasure.

What I appreciate most is how well salsify suits British growing conditions. It doesn’t need elaborate protection, tolerates our variable weather reasonably well, and actually benefits from frost. For anyone looking to expand their vegetable repertoire beyond the usual suspects, salsify offers something different without requiring exotic conditions or complicated techniques.

Start with a small row to see how you get on. Prepare the soil properly, sow at the right time, and resist the urge to harvest too early. By next winter, you’ll have your own supply of this underrated Victorian vegetable. I find that immensely satisfying, and I think you will too.

Author: Megan Walker

Megan focuses on seasonal food, kitchen garden growing, and how households can reconnect with where their food comes from. Her writing blends practical growing advice with ideas for cooking and eating in season. With a passion for fresh ingredients and sustainable living, Megan’s articles help readers make the most of local produce while supporting British farms.