Gadenin日本語Get the appThe shape of the nerine year
The calendar below is written in seasons rather than dates so it reads the same in either hemisphere. The key thing to hold onto is that the plant's active season and the garden's active season barely overlap. When everything else is growing, nerine is asleep; when the borders are finished, it flowers and then leafs out. Most mistakes with this plant come from treating it as though it ran on the same clock as its neighbors.
| Season | What the plant is doing | What you do |
|---|---|---|
| Late summer | Dormancy ending, flower stems forming inside the bulb | Plant new bulbs now, necks above the soil. Watch for the first stems. Still no watering |
| Early to mid autumn | Leafless stems rise and open over several weeks | Check for slug damage at stem bases. Remove spent stems at the base. Do not cut anything green |
| Late autumn | Leaves emerging as flowers finish | Start light watering in dry spells. Begin high-potash feeding every two or three weeks |
| Winter | Leaf fan at full size, bulb refilling | Keep the foliage. Water only in dry spells. Cover with loose grit or dry leaves in hard frost, and take it off again |
| Early spring | Growth continuing, reserves building | Continue light feeding while leaves stay green. Hand weed only; never fork around the clump |
| Late spring | Leaves yellowing and dying back | Stop watering and feeding the moment yellowing begins. Clear dead leaves once they pull away freely |
| Summer | Fully dormant, nothing above ground | Nothing. Keep the strip hot, dry, unwatered, unmulched and undug. Divide only if a clump has genuinely declined |
The decisions that actually determine the display
Four judgements, made in four different seasons, account for nearly all the difference between a nerine that flowers heavily and one that does not. None of them takes any effort; each of them requires remembering the plant at a moment when it is invisible or looks like it needs help.
- Plant shallow, and keep it shallow The top third of the bulb, and the entire neck, stays above the soil for the life of the planting. If soil or mulch creeps over the shoulders during the year, scrape it back. Bulbs that get buried stop flowering within a season or two.
- Keep the summer strip dry and clear From the moment the leaves yellow until the first stems appear, no water reaches the bulbs, nothing is planted over them and nothing damp is spread on top. This is the period in which next autumn's flowers are decided.
- Leave the winter leaves alone Foliage standing through cold weather looks untidy and invites tidying. Every green leaf removed early is taken directly out of next autumn's flower count. Wait until they yellow and detach on their own in late spring.
- Do not divide a crowded clump Congestion is the flowering condition, not a problem. Divide only after several consecutive seasons of decline in a clump that has heaved itself out of the ground, and then replant the pieces tightly and leave them for years.
New plantings and recent divisions often produce leaves but no flowers in their first autumn, and sometimes their second. Judge a nerine on its third season, not its first.
Think in years, not seasons
Nerine improves with age in a way that few bulbs do. A group planted this year will typically show leaves in its first winter, a handful of stems in its second or third autumn, and its real display in the fourth or fifth, by which point the bulbs are pressed together into the crowded mass it likes. Left undisturbed it will go on getting better for a decade or more.
That timescale should change how you site it and how you assess it. Choose the position for the next ten years, not this season's border scheme, and resist the urge to fix a clump that is simply young. The most common way to lose a good nerine is to keep intervening in years two and three.
The records that make this calendar yours
This calendar is a starting shape; the useful version is the one you build for your own garden. Keep four dates a year: the first flower stem, the last flower to open, the point at which the leaves had fully died back, and any date you watered, fed or disturbed the strip. Add one line each summer on how hot and dry the season actually was.
Within three years those entries turn into a working schedule. You will know within a week or two when to start watching for stems, whether your position is hot enough, and whether your clump is on the normal curve of improvement. Most importantly, the notes on where each stem came up show you the clump slowly expanding, which is the clearest evidence that leaving it alone is working.