For two days this week the weather here was gloriously uplifting - warm air and spring sunshine - and about time too, you might think! But with settling snow falling over London again today, I'm appreciating six herbs that seem to simply shrug off the worst of the winter weather. These six evergreen herbs can be grown on a windowsill, balcony, or garden and provide freshly picked flavours for my kitchen all year round.
I confess I've never had much luck growing herbs indoors; there's simply not enough good light in my flat - it switches from shade to full sun or vice versa depending which window I'm looking out of. I'm lucky to have a small balcony though and if I didn't have that, I'd anchor planters onto the window sills. Of course I also have herbs in the veg patch garden but when it's cold and dark, it's much nicer just to reach through a door or window.
Tried and tested over the years, I've successfully grown these particular kitchen herbs year round on my third floor balcony, with no extra heat or protection. This past week I've had to clear my balcony completely before it was thoroughly jet washed as part of ongoing building works so all plants have been temporarily removed to the garden downstairs for safety. They’ll withstand ice and snow but not the blast of a powerful water jet!
So these are my six hero herbs; the trick with all of these is to make sure that the compost they’re in is kept just moist but well drained. Waterlogged or parched plants will not survive!
Parsley (Petroselinum)
With more vitamin C in its leaves than an orange, this is the herb I’m never without. The curly leaved variety is what I grow on my balcony. The seeds can be slow to germinate so I buy a supermarket herb and transfer it straight out of its pot and into good quality compost in a planter. It needs to acclimatise/recover from its hothouse start in life but, if the weather's warm enough, it can go straight outside. Watch out for those night time temps though! The roots are free to grow and the plant thrives. Parsley is biennial, so tries to flower in the second year, at which point I replace it.
Celery Leaf (Apium graveolens)
Assuming you like the taste of celery (I do), this is a perfect alternative to celery for the windowsill or container gardener. This biennial herb is hardy down to -12°C so will happily sit through all but the harshest winters. I add a few leaves to salad but mostly use it in stocks and soups. Edible seeds follow pretty spring time flowers and are delicious ground with sea salt when dried. Sow seeds in spring for a continuous crop.
Bay (Laurus nobilis)
Over time, these can grow huge when planted in the ground so I prefer to keep mine contained in a pot to restrict its size. I bought a small lollipop bay some years ago, repotted it into a similar sized beautiful terracotta container and now replace the top inch of soil every year in spring. Bay likes its roots to be pot bound so it's a perfect container herb. Adds a subtle flavour to casseroles, a classic addition to bouquet garni, and intriguingly good in rice pudding.
Sage (Salvia officinalis)
I love having aromatic sages in the garden but, on my balcony, I grow Common Sage for cooking with. As a Mediterranean herb, it’s well suited to the rigours of life on the edge - the crosswinds of an urban balcony can be very damaging to plants - but sage, as with other grey/green or silver leaved plants, takes these conditions in its stride. Growing in a container keeps it at a manageable size, and it makes a tasty addition to vegetable dishes - I particularly love it with squash. It’s also reputed to have anti-aging properties, need I say more?
Rosemary (Rosmarinus officinalis)
It looks and smells amazing in a winter wreath but that’s not why I grow it. I have an Italian friend who makes a delicious pizza topped with thin slices of potato, chopped rosemary and cheese. It’s one of the classic ‘Scarborough Fair’ four and is excellent for aiding digestion which is why it’s so great with lamb or other fatty meats. It’s versatility extends beyond the kitchen and I love fresh sprigs steeped in warm almond oil to make a muscle soothing rub.
Thyme (Thymus)
The natural habitat of this hardy evergreen herb is paths, rockeries and cliffs so it’s not only a classic culinary herb but perfectly suited to balcony or container life. My favourite is the low growing creeping thyme in the veg patch garden which I pick from regularly; on my balcony, for ease of access, a small upright thyme is grown in the window box at the edge for maximum light. This summer I'll switch that out for an orange scented thyme (Thymus 'Fragrantissimus') which I've read is wonderful with sweet dishes, and possibly also cocktails! All thymes can be used for cooking but also medicinally - an infusion of the leaves makes a soothing tea for sore throats because of its antiseptic properties.
And, last but not least, soil for containers:
Good soil is at the heart of every successful garden. Because the substrate that I grow these container herbs is rarely changed, I use a soil based compost such as John Innes No.3 mixed with perlite for added drainage and, during spring and summer, water in an organic liquid fertiliser every few weeks.
What are your hero herbs at this time of year?
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