Mature size & growth rate

How big does Delphinium 'Magic Fountains' (Delphinium elatum 'Magic Fountains') get?

Also called Dwarf delphinium.

More about delphinium 'magic fountains'

About Delphinium 'Magic Fountains'

Delphinium elatum 'Magic Fountains' · also called Dwarf delphinium · flowering

'Magic Fountains' is a dwarf, early-flowering delphinium series bred for compact 75-90 cm spikes that rarely need staking, in a full colour range with dark or white bee eyes. Quicker to flower from seed than the Pacific Giants, it suits smaller borders and containers but is equally short-lived. All parts are poisonous.

Mature size: 75-90 cm tall, 45-60 cm wide

Indoor size vs how big it gets in the wild

Delphinium 'Magic Fountains' stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward. Indoors and in a pot, expect 75-90 cm tall, 45-60 cm wide. A pot, your light levels and a little pruning are what set the final size in a home, far more than the plant's theoretical potential.

Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Growth rate and years to mature

Delphinium 'Magic Fountains' is a moderate grower. Realistically, expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Its feeding profile backs this up: feed with a balanced or high-potash fertiliser in spring and again after the first flush. its compact spikes still draw heavily on rich soil, so mulch with compost annually.

Want this turned into the right next pot at the right moment? The pot size calculator and the delphinium 'magic fountains' repotting guide cover when and how much to size up — pot size is one of the biggest levers on how fast delphinium 'magic fountains' grows.

How to keep delphinium 'magic fountains' smaller

You are not stuck with the maximum size. For delphinium 'magic fountains' specifically, these are the levers, in order of impact:

Divide the clump every year or two — splitting delphinium 'magic fountains' is the main way to control its spread and refresh it.
Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump.
Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

The keep-it-smaller method, step by step

Lift the whole plant. Slide delphinium 'magic fountains' out of its pot in spring when the clump has filled it.
Split the clump. Tease or cut the rootball into two or more sections, each with healthy roots and growth.
Repot one division. Put a single division back in the original pot to reset it to a smaller size; pot or give away the rest.
Remove offsets as they form. Through the year, detach new runners or pups to stop it spreading again.

How to grow delphinium 'magic fountains' bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for delphinium 'magic fountains' the accelerators are:

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger.
Good light plus regular feeding maximises offset and runner production.
Leave plantlets and offsets attached and feed through the growing season for the fastest spread.

Light is almost always the ceiling. The delphinium 'magic fountains' light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When delphinium 'magic fountains' outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for delphinium 'magic fountains':

The clump bulging over the pot rim or splitting the pot — the cue to divide, not to find a bigger room.
A dense centre that goes bare or tired while the edges keep spreading.
Runners or offsets escaping across the shelf or into neighbouring pots.

If it is the pot rather than the room, it is a repotting job, not a goodbye — see the delphinium 'magic fountains' repotting guide. If you want more of this plant instead of a bigger one, the delphinium 'magic fountains' propagation guide turns prunings into new plants.

Delphinium 'Magic Fountains' size — frequently asked questions

How big does delphinium 'magic fountains' get?

Delphinium 'Magic Fountains' reaches 75-90 cm tall, 45-60 cm wide when grown indoors. Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Is delphinium 'magic fountains' slow or fast growing?

Delphinium 'Magic Fountains' is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Delphinium 'Magic Fountains' stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward.

How long does delphinium 'magic fountains' take to reach full size?

Roughly three to six years to reach mature indoor size, gaining a steady amount each growing season. Light, pot size and feeding move that timeline more than anything else.

How do I keep delphinium 'magic fountains' smaller?

Divide the clump every year or two — splitting delphinium 'magic fountains' is the main way to control its spread and refresh it. Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump. Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

How can I make delphinium 'magic fountains' grow bigger or faster?

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger. Good light plus regular feeding maximises offset and runner production. Leave plantlets and offsets attached and feed through the growing season for the fastest spread.