There are plants that earn their place in the garden through beauty alone. And then there's rosemary — a plant that earns its place twice over. First, in the garden, where its silvery-green needles, upright form, and clouds of pale blue flowers make it one of the most handsome herbs you can grow. And then again in the kitchen, where its resinous, pine-like fragrance transforms even the simplest dish into something memorable.
For South African gardeners, rosemary is a gift. Our warm, dry climate suits it perfectly. It asks for very little and gives back generously — season after season, year after year. Whether you're growing it in a terracotta pot on a sunny stoep, training it into a low hedge along a garden path, or harvesting it by the handful for the kitchen, rosemary is one of those plants that quietly becomes indispensable.
In this post, we're exploring everything rosemary: how to grow it successfully in South African conditions, how to harvest and preserve it, and how to use it in the kitchen — including two recipes that showcase our Rosemary Gourmet Salt, a blend that captures the herb at its aromatic peak.
Why Rosemary Belongs in Every South African Garden
Rosemary (Salvia rosmarinus, formerly Rosmarinus officinalis) is native to the Mediterranean — a region whose climate shares much in common with large parts of South Africa. Hot, dry summers. Mild, wet winters. Rocky, well-drained soils. Sound familiar? This is precisely why rosemary thrives here with so little intervention.
Beyond its culinary value, rosemary is a pollinator magnet. Its small blue flowers appear in late winter and early spring, providing an early nectar source for bees at a time when little else is in bloom. If you're working on creating a wildlife-friendly garden, rosemary is an excellent anchor plant — and you can read more about that in our post on how to attract bees and butterflies to your spring garden.
It's also remarkably long-lived. A well-sited rosemary plant can thrive for a decade or more, growing into a substantial shrub that provides year-round structure, fragrance, and harvests.
How to Grow Rosemary in South Africa
Choosing the Right Spot
Rosemary is non-negotiable about one thing: sunlight. It needs a minimum of six hours of direct sun per day, and more is better. In shadier spots, it becomes leggy, loses fragrance intensity, and is more susceptible to fungal issues. Choose your sunniest bed or the most sun-drenched corner of your balcony.
Soil & Drainage
Poor drainage is the number one killer of rosemary. It will tolerate lean, sandy, or rocky soils far better than it will tolerate waterlogged roots. If your garden soil is heavy clay, either amend it generously with coarse sand and compost, or grow rosemary in a raised bed or container with excellent drainage holes. A slightly alkaline to neutral pH (6.5–7.5) is ideal.
Watering
Once established — typically after the first growing season — rosemary is highly drought-tolerant. Water deeply but infrequently, allowing the soil to dry out between waterings. Young plants need more regular watering while their root systems develop, but resist the urge to overwater. When in doubt, wait another day.
Feeding
Rosemary doesn't need much feeding. An annual top-dressing of compost in spring is usually sufficient. Over-fertilising, particularly with nitrogen-rich feeds, produces lush, soft growth that is less aromatic and more prone to pest damage. Less is genuinely more here.
Pruning
Prune lightly after flowering to keep the plant bushy and prevent it from becoming woody and open at the centre. Never cut back into old, leafless wood — rosemary doesn't regenerate from bare stems the way some other shrubs do. Little and often is the approach: trim the soft growth tips regularly, which also gives you a steady supply of fresh sprigs for the kitchen.
Propagation
Rosemary is easy to propagate from semi-hardwood cuttings taken in spring or autumn. Take 10–15cm cuttings, strip the lower leaves, dip in rooting hormone, and insert into a free-draining propagation mix. Keep in a warm, bright spot out of direct midday sun, and roots should develop within four to six weeks.
Harvesting & Preserving Rosemary
Harvest rosemary in the morning, after the dew has dried but before the heat of the day drives off the volatile oils. Use clean, sharp scissors or secateurs and take no more than a third of the plant at any one time.
Fresh rosemary keeps well in a glass of water on the kitchen counter for up to a week, or wrapped in a damp cloth in the fridge for two weeks. For longer preservation, you have several options:
- Drying: Tie small bunches and hang upside down in a warm, airy spot out of direct sunlight. Dried rosemary retains good flavour for six to twelve months.
- Freezing: Strip leaves from stems, spread on a tray to freeze individually, then transfer to a sealed bag. Use directly from frozen — no need to thaw.
- Infused salt: The method behind our Rosemary Gourmet Salt — blending the herb with premium salt to create a seasoning that keeps the flavour accessible and ready to use at any moment.
For more ideas on pairing homegrown herbs with artisan seasonings, our post on gourmet salts and garden herbs is worth a read.
Cooking with Rosemary: A Note on Flavour
Rosemary is one of the more assertive culinary herbs — its flavour is resinous, slightly camphor-like, and intensely aromatic. It pairs beautifully with lamb, chicken, pork, roasted vegetables, legumes, and bread. It holds up well to long cooking times, making it ideal for roasts, braises, and slow-cooked dishes. Use it with a light hand in delicate preparations, and more freely in robust, hearty ones.
Our Rosemary Gourmet Salt brings together the herb's aromatic intensity with the clean, mineral quality of premium salt. It's a finishing salt as much as a cooking salt — equally at home scattered over a just-baked loaf as it is rubbed into a leg of lamb before roasting.
Recipe 1: Rosemary Salt Roasted Potatoes
This is the kind of side dish that disappears before it reaches the table. Crispy, golden, and deeply savoury — it's the perfect showcase for Rosemary Gourmet Salt, and it goes with almost everything.
Serves: 4 as a side
Time: 45 minutes
Ingredients:
- 800g baby potatoes, halved
- 3 tbsp good olive oil
- 1½ tsp Diamond Field Blooms Rosemary Gourmet Salt
- Freshly ground black pepper
- Zest of half a lemon (optional, but recommended)
- A small handful of fresh rosemary sprigs (optional, for extra fragrance)
Method:
- Preheat your oven to 200°C (fan 180°C).
- Toss the halved potatoes in olive oil until every cut surface is well coated.
- Sprinkle generously with Rosemary Gourmet Salt and a few grinds of black pepper. Toss again.
- Spread in a single layer on a large baking tray, cut side down. Don't crowd the pan — use two trays if needed.
- Tuck in a few fresh rosemary sprigs if using.
- Roast for 35–40 minutes, turning once halfway, until deeply golden and crispy at the edges.
- Remove from the oven, discard the rosemary sprigs, and finish with lemon zest and an extra pinch of Rosemary Gourmet Salt. Serve immediately.
Tip: For extra crispiness, parboil the potatoes for 8 minutes before roasting, then shake them in the pot to rough up the edges before tossing in oil.
Recipe 2: Rosemary Salt Focaccia
A rustic, dimpled focaccia finished with a generous scatter of Rosemary Gourmet Salt is one of life's great pleasures. The salt draws out the herb's fragrance as the bread bakes, filling the kitchen with an aroma that is almost impossibly good. Serve warm with a small bowl of good olive oil for dipping.
Makes: 1 large loaf (serves 8–10)
Time: 2 hours (including proving)
Ingredients:
- 500g strong bread flour
- 7g instant yeast (1 sachet)
- 1 tsp sugar
- 1 tsp fine salt
- 350ml warm water
- 5 tbsp good olive oil, divided
- 1½–2 tsp Diamond Field Blooms Rosemary Gourmet Salt, for topping
- Fresh rosemary sprigs, for topping (optional)
Method:
- In a large bowl, combine flour, yeast, sugar, and fine salt. Make a well in the centre and add the warm water and 2 tbsp olive oil. Mix to a shaggy dough, then turn out and knead for 8–10 minutes until smooth and elastic. Alternatively, use a stand mixer with a dough hook for 6 minutes.
- Place the dough in a lightly oiled bowl, cover with a damp cloth or cling film, and leave in a warm spot for 1 hour until doubled in size.
- Pour 2 tbsp olive oil into a 30x20cm baking tin and spread it around. Tip the dough into the tin and gently stretch it to fill the corners. If it springs back, leave it to rest for 10 minutes and try again.
- Dimple the surface generously with your fingertips — press all the way down to the base of the tin. Drizzle the remaining tablespoon of olive oil over the surface, letting it pool in the dimples.
- Scatter Rosemary Gourmet Salt evenly over the top. Tuck in fresh rosemary sprigs if using. Leave to prove for a further 20–30 minutes while you preheat the oven to 220°C (fan 200°C).
- Bake for 20–25 minutes until deep golden on top and the base sounds hollow when tapped. Cool in the tin for 10 minutes before turning out.
- Finish with one final pinch of Rosemary Gourmet Salt while still warm. Best eaten the same day, though it toasts beautifully the next morning.
Tip: For an overnight focaccia with even more flavour, make the dough the evening before and let it prove slowly in the fridge overnight. Bring to room temperature for 30 minutes before dimpling and baking.
Beyond the Kitchen: Rosemary Around the Home
Rosemary's uses extend well beyond cooking. A few sprigs tucked into a linen drawer impart a clean, herbaceous fragrance that deters moths naturally. Dried rosemary bundles make beautiful additions to a home fragrance arrangement — and pair wonderfully with our spring home fragrance guide for ideas on scenting your space naturally.
It's also a beautiful cut herb — long-stemmed rosemary branches add texture and fragrance to flower arrangements, and dry gracefully in a vase without water, lasting for weeks.
Shop Rosemary Gourmet Salt
Ready to bring rosemary's flavour into your kitchen without the wait? Our Rosemary Gourmet Salt is handcrafted in small batches and ready to use straight from the jar. Sprinkle it over roasted vegetables, rub it into meat before grilling, finish a warm loaf of bread, or stir it into butter for an instant herb compound. It's one of those pantry staples that quietly makes everything taste better.
And if you're inspired to grow your own rosemary to pair with it — you now have everything you need to get started.