Junipers have a reputation for swallowing borders. Give one an inch and it will take the whole bed. That accusation is fair for the big hedging junipers and the sprawling pfitzerianas, but it ignores the quiet end of the family. Dwarf and slow-growing junipers are compact, evergreen, tolerant of wind and drought, and content in a pot for years. In a courtyard, a narrow front garden or a patio corner, they supply structure that does not need replacing every season.
A small garden needs plants that earn their keep. Junipers do it by being slow. Most compact forms put on only a few centimetres a year, so they hold their shape with almost no clipping and look settled from the day you plant them. They are also genuinely tough: full sun, wind, thin soil and coastal salt are all fine, provided the drainage is good.
Two things they will not forgive: shade and wet feet. Junipers in heavy, waterlogged clay yellow, thin out and eventually die back from the roots. If that is your soil, grow them in a raised bed or a pot, or dig in plenty of grit and plant on a slight mound. The foliage repays the fuss: needles in steel blue, silver, grey-green and gold, dense enough to shelter small birds through winter.
A pair of 'Blue Arrow' in tall, heavy pots will frame a doorway, a bench or the end of a short path without crowding it. Underplant with thyme or a low sedum so the base of the pot is not bare in winter. Choose pots at least 45cm across; small ones dry out too fast and make columnar junipers look top-heavy in a gale.
Lay weed-suppressing membrane, cut a hole for a single 'Blue Chip' or 'Blue Pacific', and surround it with gravel, alpine thyme, saxifrage and sempervivums. Keep the gravel right up to the collar of the juniper — no bark mulch, which stays damp against the stem and encourages rot. This is the closest thing to a no-maintenance corner a small garden can have.
'Gold Star' needs a dark partner to show off the colour. Try it with Ophiopogon planiscapus 'Nigrescens', a dark heuchera or a black-painted container. In a tight border, place it at the front and repeat it once further along: repetition is what stops a narrow bed looking like a collection of unrelated plants.
Junipers are easy once they are settled. Almost all failures happen in the first season, in the planting hole.
Most compact junipers need very little. Trim in late spring or early summer, when the plant is growing and cuts heal quickly, and take only the tips of the current season's shoots. The important rule is this: do not cut into the bare, brown interior. Junipers rarely regrow from old wood, so a hard cut leaves a permanent hole. Work a little at a time, shaping with sharp secateurs or shears rather than a hedge trimmer, which shreds needles and leaves brown edges.
On columnar forms, shorten the side shoots each spring and remove any competing leader. On golden forms such as 'Gold Star', cut out any shoots that have reverted to plain green, taking them back to the branch junction.
Choose a single juniper that suits the space you actually have — a low spreader for a wide pot, a slim column for a tight corner — and plant it properly, in sun, with room to drain. A healthy small juniper will look good in January and will still be there in ten years, which is more than can be said for most of what fills a garden centre in spring. Add a second only when you know where it should go.
Photo: OlgaVolkovitskaia / Pixabay
