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Limonium from Tissue Culture- Perennial types
New for Fall 2026 from HilverdaFlorist!
Limonium x altaica is a hybrid with a similar texture to L. sinensis. It is very delicate looking but is very cold and heat tolerant. HilverdaFlorist does not expressly state that these are L. x altaica types, but they look like it to me and the boast the hardiness and productivity associated with these sorts of hybrids. They are probably hardy down to zone 5, and maybe colder with good drainage and a bit of protection. We simply don't have hardiness data on this series yet. They are drought tolerant after establishment and are unbothered by heat in the summer. They may slow down a bit in the height of summer in very hot areas but should perk back up when cooler weather returns.
They are similar to their L. sinensis cousins but the stems are a bit taller and wider and have an airier habit.
Culture- Space 12 to 18" apart. When the first stems are emerging from the crown, pinch them out to encourage the production of even more stems. They should bloom well until frost. Grow in well drained to sandy soils.
All Limonium need a couple of weeks of cold weather (35-45F) to initiate flower buds. This should happen naturally when planting in the fall. The goal is to establish a large crown of foliage over winter to support flower growth in the spring. Remove the first few stems as they appear to encourage strong vegetative growth.
About Tray Sizes (please read)
210 and 125 cell trays are full-sized trays, and three of these will fit in a shipping box.
50 cell trays are half-sized trays (unless otherwise noted) and two of these are the equivalent of one full sized tray. Six of these will fit in a shipping box. These trays are long and skinny. (Think hotdogs). There are not compatible with 25 cell half trays. Scoop scabiosa, veronica, solidago, gypsophila, hypericum, herbs, some tweedia, and others are grown in the 50 cell tray.
*Chrysanthemums are grown in the same 50 cell half tray as mentioned above, but due to their height, they take up twice as much space. So TWO half trays of mums takes up 2/3 of the box.
25 cell half trays are also half-sized trays, but they are short and square. (Think hamburgers). These are not compatible with 50 cell half trays. Limonium and astrantia are grown in this tray.
Gerberas are also grown in a 25 cell half tray, but are tall that the others, and FOUR of these half trays of gerberas fills a box.
18 and 32 cell trays are full sized trays specifically for our vernalized perennials. These have their own set of shipping rules (find details HERE) and cannot be combined with items grown in 210, 125, or 50 cell trays.
Growing Guides
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| Common Name | Limonium, Statice |
| Genus | Limonium |
| Species | l. Altaica, l. Latifolium, l. Sinuatum |
| Family | Plumbaginaceae |
| Life Cycle | Perennial in mild zones, can be grown as an annual. |
| Format | Plugs |
| Plug Care | Bump up into larger plugs or harden off and plant out shortly after receiving plugs. Do not allow plugs to sit in trays and become rootbound or they will remain stunted and not reach their full potential after transplanting. Tissue culture types that require a cold period to initiate buds will have already received a chill, but these plugs will benefit from cool temperatures after transplant to properly develop a healthy root system and rosette of leaves prior to flowering. The Safora series does not require a chilling period. |
| Netting / Staking | One layer of netting is recommended, approximately 40cm or 16 inches above the bed. |
| Temperature Range | Many tissue culture types are perennials, but it is unknown exactly how cold tolerant they are as they were bred in Israel and haven't been extensively trialed in colder climates. We would expect them to survive winter down to zone 5b with protection. Seed grown strains should be treated as annuals. Ideal growing temperatures are 72-80F (22-27C) during the day and 54-60F (12-16C) at night. |
| Spacing | Plant approximately 5-6 plants per square meter. This is achieved by planting two lines per bed with 13-16 inch spacing. |
| Soil Preference | Soil must be fertile and more importantly well drained. Altaica types enjoy a high level of irrigation as long as the soil is free-draining. The irrigation helps to maintain mild soil temperatures and contributes to yield and stem quality. Limonium don't like hot soil, so if you plant into landscape fabric choose a white fabric instead of black. Soil should be amended with compost and granular fertilizer prior to planting, or regular fertigation via the drip irrigation system. During the vegetative stage, Limonium benefits from more nitrogen, and during the flowering period it benefits from more potassium. See the attached culture sheet from Danziger for more detailed information. |
| Day Length | facultative long-day plant |
| Pinching | Pinching early flower stems is recommended while the plants are getting established early in the season. This allows the plants to divert its energy into the production of roots and leaves. Once the rosette of leaves is approximately 15-16 inches in circumference, flowering stems can be allowed to develop normally. |
| When to Plant | Plant early in the spring, a couple weeks before last frost so plants can receive a chill period prior to the onset of warm spring temperatures. They can tolerate cold temperatures but should be protected from frost and freezing using frost cloth. |
| Harvesting | According to Danziger it can take 3-4 months until the first stems are ready for harvesting but we have heard from growers in the US that plants pump out the stems much earlier that that. Flowers do not tend to open post-harvest, so wait until 70-80% of the inflorescences on a stem have opened before cutting. |
| Post Harvest Care | Cut stems should be immediately plunged into cool water. Use a floral holding solution/preservative to extend vase life. Flowers can be kept in the cooler for a short period if they are not needed right away. For drying, hang bunches upside down in a warm, dry area. |
| Diseases / Insects | Insect pests include aphids, thrips, caterpillars and spider mites. Diseases include powdery mildew, downy mildew, and Botrytis especially in areas with high humidity and low air circulation, and during long periods of wet foliage. Water using drip irrigation and avoid wetting the leaves close to sundown. |
| Bailey's Notes | Many statice/Limonium varieties flower in flushes. If stems begin to dwindle mid-season, remove any dead or yellowing foliage to allow light penetration into the rosette of leaves and to provide room for new foliage growth. The application of gibberellic acid is said to help promote another flush - see Danziger cultural guide linked below for more details. Another method to induce an additional flush of flowers from l. Altaica types is a cut-back, even below ground level, as altaica has potential shoots on the roots as well. |
| Resources |