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Growing calla lilies takes about 90 to 120 days from planting the rhizomes to when you see those gorgeous blooms open up.
If you’re wondering how long it takes to grow calla lilies from seed, you’re looking at a much longer journey, often six months or more before the first flower appears.
The exact answer to how long does it take to grow calla lilies really depends on whether you start with rhizomes, potted plants, or seeds, and also the growing conditions you provide.
In this post, we’ll break down the full timeline for how long it takes to grow calla lilies, the stages you’ll watch along the way, and the factors that can speed up or slow down the process.
Let’s dig into the timeline so you know exactly what to expect from your calla lily planting adventure.
How Long Does It Take To Grow Calla Lilies From Rhizomes?
If you plant calla lily rhizomes, which are those bulb-like structures you buy in spring, the grow time is pleasantly predictable.
How long it takes to grow calla lilies from rhizomes is typically 90 to 120 days from planting until the first blooms are fully open.
That means if you plant in early spring after the last frost, you can expect flowers by midsummer, which is right on schedule for most gardeners.
The rhizomes respond to soil warmth, so the sooner the ground warms up, the faster the growth process kicks in.
1. The Sprouting Stage (Weeks 1 to 3)
After you plant your calla lily rhizomes, the first thing you’ll notice is nothing for a week or two.
This is completely normal as the rhizomes are busy establishing roots underground and waking up from dormancy.
Around week two or three, you should see the first green shoots poking through the soil, which signals that the growth cycle is officially underway.
At this point, how long does it take to grow calla lilies becomes a matter of patience, as the shoots will grow slowly at first.
2. The Leaf Development Stage (Weeks 4 to 8)
Once the shoots appear, the calla lily plants will focus their energy on producing lush, arrow-shaped leaves that soak up sunlight.
This foliage stage is crucial because the leaves are essentially the solar panels that fuel the future blooms.
During this period, you’ll see the plant grow taller, and the leaves will spread out, signaling that the roots are healthy and the plant is thriving.
This is also the time when consistent watering and bright, indirect light will help speed up how long it takes to grow calla lilies.
3. The Budding and Blooming Stage (Weeks 9 to 13)
Around week nine or ten, you’ll notice a thicker stem emerging from the center of the leaves.
This is the flower stalk, and it will eventually produce the iconic trumpet-shaped calla lily bloom.
The buds will slowly open over the next two to three weeks, and by week twelve or thirteen, you should have fully open flowers.
So when people ask how long does it take to grow calla lilies to the point of blooming, the answer is usually around three to four months from rhizome planting.
How Long Does It Take To Grow Calla Lilies From Seed?
Growing calla lilies from seed is a completely different story, and the time commitment is much longer.
If you’re wondering how long it takes to grow calla lilies from seed, you should prepare for at least six to eight months before you see any blooms.
Seeds need to be soaked, then sown in a moist seed-starting mix, and they require consistent warmth and humidity to germinate.
Germination alone can take anywhere from 15 to 30 days, and after that, the seedlings need several months to grow into bulbous rhizomes that are big enough to flower.
1. Germination Time for Calla Lily Seeds
Calla lily seeds are not known for being speedy germinators, so patience is key from the very start.
To help speed things up, soak the seeds in warm water for 24 to 48 hours before planting to soften the outer coat.
Then, keep the seed-starting trays at a warm temperature of around 70 to 75°F, and maintain consistent moisture.
Under these conditions, you can expect the seeds to sprout in about three to four weeks, which starts the long countdown for how long it takes to grow calla lilies from seed.
2. Seedling Growth to Mature Rhizomes
Once the seedlings appear, they will grow slowly, and you’ll need to care for them like any delicate houseplant.
They need bright, indirect light and regular feeding with a balanced liquid fertilizer every few weeks.
After about three to four months, the seedlings will start forming small rhizomes underground.
These immature rhizomes need another couple of months of active growth to bulk up enough to support flowering.
So, if you start seeds in early winter, you might see blooms by late spring or early summer, which answers how long it takes to grow calla lilies from seed at roughly six to eight months.
What Factors Can Speed Up Or Slow Down How Long It Takes To Grow Calla Lilies?
While the standard timeline for how long it takes to grow calla lilies is around three months from rhizomes, certain conditions can either accelerate or delay that process.
Paying attention to these factors will help you get the fastest, healthiest bloom possible.
1. Soil Temperature and Warmth
Calla lilies are tropical plants at heart, so they absolutely love warmth.
If you plant your rhizomes in soil that’s at least 60°F, the growth will be rapid and steady.
But if you plant too early in cold spring soil, the rhizomes will just sit there dormant, which adds weeks to how long it takes to grow calla lilies.
You can warm the soil by covering the planting area with black plastic mulch a couple of weeks before planting.
2. Sunlight Exposure
Calla lilies are happiest in full sun in cooler climates, but they appreciate partial shade in very hot summer regions.
More sunlight generally means faster photosynthesis, which translates to quicker leaf growth and sooner blooms.
Too much shade will make the plants focus on foliage instead of flowers, which definitely extends how long it takes to grow calla lilies to full bloom.
3. Watering Consistency
Keeping the soil consistently moist but not soggy is the sweet spot for calla lilies.
They love water, especially during the active growing season, but they will rot if the soil becomes waterlogged.
A consistent watering schedule encourages strong root development, which can shave a week or two off your total grow time.
4. Fertilizer and Soil Quality
Rich, well-draining soil amended with organic compost is the best foundation for calla lilies.
A balanced fertilizer applied every four to six weeks during the growing season will provide the nutrients needed for rapid growth.
If your soil is poor in nutrients, the plants will struggle and take much longer to mature, so don’t skip this step if you want answers to how long it takes to grow calla lilies that are on the shorter end.
So, How Long Does It Take To Grow Calla Lilies?
How long it takes to grow calla lilies is generally 90 to 120 days from rhizome planting to full bloom.
If you’re growing from seed, expect to wait six to eight months for the same result, so rhizomes are definitely the faster route.
The process is straightforward, and the reward is absolutely worth the patience when those elegant blooms finally appear.
Just remember to provide warm soil, plenty of sun, consistent moisture, and good nutrition, and your calla lilies will reward you with a spectacular show.
So now that you know exactly how long it takes to grow calla lilies, you can plan your planting schedule with confidence and enjoy these stunning flowers all season long.