Sea Asparagus Baby Leaf Glasswort - 150 seeds (Salicornia europaea)

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 SAMPHIRE ALSO CALLED SEA ASPARAGUS

(Salicornia europaea)

Growing under Glass

Your guide to growing samphire in a greenhouse

Samphire has had something of a popularity boost in the last few years, popping up on restaurant menus and dinner tables across the country. Growing naturally along the coast right here in the UK, it’s also easy to grow it for yourself at home. 

Bright green in colour with a salty taste, samphire is also known as glasswort, or the ‘sea asparagus’. High in vitamin C, it’s said to be great for digestion and can even help relieve flatulence – good news for everyone!

BENEFITS OF GROWING SAMPHIRE IN A GREENHOUSE

While it does grow well outdoors, there are a number of benefits to growing samphire in a greenhouse. For starters, it’s an ideal size, reaching 6-8cm tall. Samphire prefers the warmth, with a sunny position if it can find it – which makes a greenhouse the perfect environment for it to thrive. A greenhouse also provides ample protection from cold, harsh weather conditions, including frost. This protection makes it much more likely for plants to grow year after year, especially as samphire reseeds itself.

TOP TIPS FOR SUCCESSFUL SAMPHIRE GROWING

In order to get the most from your samphire crop, we recommend following these tips:

Samphire is best started in spring, so opt to plant it in trays between March and May.

As samphire is a seawater plant, it thrives when watered with a saline solution. It’s recommended that for every pint (half litre) of water you use, you should add one teaspoon of sea salt. Be sure to use proper sea salt rather than table salt, as any anti-caking agents will kill your plant.

Water regularly to keep the compost moist and ensure it doesn’t dry out.

Harvest your crop between June and August for the best results. 

By following these simple steps, you’ll find that growing samphire in a greenhouse has never been easier!

Need some ideas for how to use it once it’s been harvested? It makes a great accompaniment to fish dishes – just cook it the same way you would asparagus, boiled and with a bit of butter! If you don’t fancy cooking it, it makes a lovely salty addition to any salad. Give it a go!

SOWING:

Sow: March-May

Season: Annual

Height 12 inches (30cm)

Bloom Season: August-October

Environment: Full Sun

Soil Type: Sand, Saline

Germination Time: 5–20 Days

Temperature: 23 C / 77F

Watering: Use salty water. One teaspoon of proper sea salt in a pint  (half litre) of water.

Plant watering: Watering once per week

Depth: press into the soil ½ inch deep (1 cm)

Plant Spacing: 12 inches (30 cm)


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Data sheet

Color
Green
Height
Up to 30cm (11.8in)
Moisture
Medium
Ideal for
Beds & borders
Cottage garden
Cut flowers
Pots & containers
Sunlight
Full sun
Scented
Unscented
Vegetable
Herb
Type
Hardy annual

Specific References