Echeveria 'Perle von Nürnberg': the 22 cm rosette that insists on purple
This is the largest and most colour-demanding Echeveria in most collections. Grown well it is a 22 cm rosette of lavender-pink leaves with a copper overlay; grown anywhere short of full light it reverts to a flat grey-green and never goes back without a move.
Colour needs 35,000 lux minimum, and it is not negotiable
The lavender tone in Perle von Nürnberg comes from the same anthocyanin-plus-farina combination as other Echeveria, but the thresholds are higher. Below 35,000 lux the plant keeps only a thin blue-grey haze; at 35,000–45,000 you get pink margins; at 50,000–60,000 lux with cool nights the whole rosette goes copper-lavender and the leaf edges thicken into a red rim.
That means a windowsill will not do it in winter in most latitudes. A 150 W LED bar at 35 cm, 13 hours a day, is the practical indoor answer. Introduce the increase over three weeks, adding two hours of light every seven days, or the leaves that developed in shade will scorch at the tip and scar permanently.
Watering a big rosette: 13 days, and the leaf-stack test
At 24–27 °C a 22 cm rosette in a 15 cm pot dries in 12–15 days. This cultivar holds more water per leaf than E. elegans and shows thirst differently: instead of closing, the second and third leaf rows droop downward while the centre stays tight.
The consequence of over-watering is also different here. Because the rosette is dense and the leaf bases sit almost horizontally, water trapped in the axils is retained for days even in a dry room. Water at the pot edge only, and never in the two hours before lights-out.
Two diagonal cuts to fix a tilted plant
Perle von Nürnberg almost always grows on a leaning stem, because the rosette is heavy and grows toward the light. The standard fix is the behead: in late March or early September, cut the stem 1.5 cm below the rosette with a clean blade, keep the rosette in shade for five days, then set it on dry mix.
The stump is not waste. Leave 3–4 cm of stem above the soil with two or three leaves attached and it will produce two or three new heads in six to ten weeks, giving you a branched specimen rather than one stem. Roots on the beheaded rosette appear in 18–25 days at 22 °C.
Why it does not offset, and how to force it
Unlike E. elegans this plant is a poor pupper under normal conditions — the apical bud suppresses side growth strongly. Removing the apical bud by beheading is the reliable lever: a stump almost always produces two or three heads, which is a clone of the plant by branching rather than by stolon.
If you want stolon offsets specifically, the only reliable route is to raise light above 45,000 lux and keep night temperatures below 16 °C through spring. Under those conditions a mature plant occasionally throws one or two stoloniferous pups a year, usually at the base in May.
Parameter table
- Latin name
- Echeveria 'Perle von Nürnberg'
- Common name
- Perle von Nürnberg
- Rosette form
- tight
- Light range
- 35,000–60,000 lux
- Water interval
- 13 days at 24–28 °C
- Rest period
- Semi-dormant in the hottest six weeks; colour peaks December to February
- Hardiness
- 9b–11 (damaged below 0 °C)
- Offset behaviour
- Reluctant — one or two offsets a year, and often none at all below 30,000 lux
- Soil mix (by volume)
- 2 pumice : 1 akadama : 1 coco coir, by volume
- Mature diameter
- 22 cm
| Month | State | What the plant wants |
|---|---|---|
| January | Growth | Deepest rest. Water only if the lowest leaf ring softens; keep the room as bright as you can. |
| February | Growth | Late rest. Daylight is returning — begin adding an hour of supplementary light every two weeks. |
| March | Growth | Repotting window opens for summer growers. Trim roots, refresh the mineral fraction, dry for a week. |
| April | Growth | Growth restarts. First full watering at the rim, then resume the published interval. |
| May | Growth | Peak growth and the offset season. Feed at quarter strength every third watering. |
| June | Growth | Lengthening days, rising heat. Watch the leaf turgor test rather than the calendar. |
| July | Rest | Out of action for this genus — no water unless the plant visibly shrinks, and no repotting. |
| August | Rest | Out of action for this genus — no water unless the plant visibly shrinks, and no repotting. |
| September | Growth | Autumn window for winter growers. Root-prune and repot while the soil is still warm. |
| October | Growth | Peak autumn growth. This is the season when most colour work should be done. |
| November | Growth | Daylight falls fast. Taper watering by a quarter and stop feeding entirely. |
| December | Growth | Slow, dry and bright. This is the colour peak for most genera in the collection. |
Tinted rows are the months this genus is genuinely out of action: no repotting, no feeding, and water only if the plant visibly shrinks.
Four things to take away
- Below 35,000 lux this plant stays grey-green regardless of everything else you do.
- Increase light by two hours a week over three weeks or shade-grown leaves scorch.
- Thirst shows as drooping outer rows, not as a closed rosette.
- Behead in late March or early September; the stump makes two or three heads.
Informational only — This page is a cultivation record, not horticultural or plant-pathology advice. Any treatment should follow the product label and local regulation.