Getting it to bloom

Why won't my Rhipsalidopsis gaertneri bloom? (and how to make it flower)

Also called Easter cactus, spring cactus, Whitsun cactus (Hatiora gaertneri).

More about rhipsalidopsis gaertneri

About Rhipsalidopsis gaertneri

Hatiora gaertneri · also called Easter cactus, spring cactus · flowering

The Easter cactus (Hatiora gaertneri, syn. Rhipsalidopsis gaertneri) is a Brazilian epiphytic forest cactus that bursts into star-shaped scarlet flowers in spring. Its flattened, scalloped stem segments resemble the Christmas cactus but its blooms open from the segment tips with pointed petals. Wanting bright indirect light, even moisture and cool spring nights, it can be fussier to flower than holiday Schlumbergera.

Plant type: flowering

Watch for — Reluctance to flower: Easter cactus is particular: it needs a cool, drier rest with shorter days through late winter (around 8-12°C nights) to initiate buds. Without this trigger it stays green.

The reasons rhipsalidopsis gaertneri isn't blooming

Almost every non-blooming rhipsalidopsis gaertneri traces back to one of these, roughly in order of how common they are:

Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.
Too much nitrogen feed, driving lush foliage at the expense of flowers (very common with general or lawn feeds).
The plant has not been deadheaded, so it stops flowering once it sets seed.
Irregular watering — drought or waterlogging at the budding stage makes buds abort.
It is still too young or was checked by a transplant and is rebuilding before flowering.

Feeding rhipsalidopsis gaertneri a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.

The fix — how to get rhipsalidopsis gaertneri to flower

Maximise sun. Give rhipsalidopsis gaertneri the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers.
Switch the feed. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.
Deadhead regularly. Remove spent flowers often to keep it producing more rather than stopping to set seed.
Water consistently. Keep moisture even through budding and flowering — drought-then-flood swings make buds drop.

Light and feeding do most of the heavy lifting here. Dial in the spot with the light guide for rhipsalidopsis gaertneri and get the feeding right with the rhipsalidopsis gaertneri fertilising schedule — the wrong feed (too much nitrogen) is one of the most common silent reasons a healthy plant makes leaves instead of flowers.

Bloom season and what to expect

Rhipsalidopsis gaertneri flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.

Post-bloom care so it flowers again

Deadhead, keep feeding lightly, and many will rebloom; collect seed from the best plants at the end of the season if you want to grow them again.

For everything else this plant needs day to day, see the full rhipsalidopsis gaertneri care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Rhipsalidopsis gaertneri blooming — frequently asked questions

Why won't my rhipsalidopsis gaertneri flower?

Rhipsalidopsis gaertneri blooms on the season's growth given enough sun, warmth and the right feed — there is no cold or photoperiod trick, just good growing conditions and a bloom-leaning feed. The most common reason it is not happening: Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.

How do I make rhipsalidopsis gaertneri bloom?

Give rhipsalidopsis gaertneri the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.

When does rhipsalidopsis gaertneri normally bloom?