Alstroemeria is a popular choice for cut flower arrangements due to its vibrant colors and remarkable endurance. They are consistently sought after for their ability to maintain a fresh, lively look long after many other flowers in a bouquet have faded. The primary goal for anyone receiving this flower is understanding the simple, yet specific, care steps that maximize this already impressive lifespan.
The Exceptional Longevity of Alstroemeria
With proper care, Alstroemeria cut flowers can reliably last between 10 days and two weeks in a vase. Under truly ideal conditions, many varieties can maintain their beauty for up to three weeks, making them one of the longest-lasting cut flowers available. This longevity is attributed to the stem structure, which contains multiple florets that open sequentially over time, ensuring the display remains dynamic and fresh. While some flowers are highly sensitive to ethylene gas, a natural plant hormone that accelerates aging, Alstroemeria’s response is complex. Though some scientific sources indicate a sensitivity to ethylene, it is often related to leaf yellowing rather than rapid petal drop, and commercial growers often use anti-ethylene treatments to manage this. The best way to ensure maximum longevity is to purchase stems with only one or two flowers open and the remaining buds still tight and showing color.
Essential Preparation Techniques for Maximum Vase Life
Begin by ensuring the vase is meticulously clean, as any residual bacteria from previous arrangements can contaminate the water and quickly block the vascular system of the new flowers. Washing the vase with warm soapy water or a mild bleach solution removes this microbial threat before filling it with fresh, room-temperature water.
Next, it is crucial to prepare the stems to optimize water uptake. Using a sharp knife or floral shears, trim about one to two inches off the bottom of each stem at a 45-degree angle. This angled cut increases the surface area for absorption and prevents the stem end from resting flat against the vase bottom, which would impede water flow. Cutting the stem under running water or fully submerged in a basin can prevent air bubbles from entering the vascular tissue, which can cause a blockage and rapid wilting.
Finally, remove all foliage that will sit below the waterline in the vase. Leaves submerged in water will quickly decay, creating a nutrient-rich environment for bacteria to multiply. This bacterial proliferation clogs the plant’s water-conducting vessels, which starves the flower of hydration. Adding a commercial flower food packet is also highly recommended, as it contains a sugar source for nourishment, an acidifier to improve water uptake, and a biocide to inhibit bacterial growth.
Daily Maintenance for Extended Bloom Duration
The water should be completely replaced every two to three days, rather than simply topped off, to prevent the build-up of micro-organisms and dissolved solids. Each time the water is changed, a fresh dose of commercial flower food should be added to continue providing nourishment and keeping the water clean.
It is also beneficial to give the stems a small, fresh trim of about half an inch every other time the water is changed. This action re-opens the stem’s vascular channels, which can become sealed or clogged over time, ensuring the flower can continue to absorb water efficiently.
Alstroemeria should be displayed in a cool location away from direct sunlight, which causes rapid dehydration and premature fading. They should also be kept away from drafts, heat sources, and ripening fruit. Ripening fruit releases ethylene gas, which accelerates the senescence, or aging, of cut flowers.
As individual florets on the stem begin to wilt, they should be gently plucked or “deadheaded” promptly. Removing these spent blooms redirects the plant’s energy and resources to the remaining unopened buds. This practice encourages the sequential blooming that is characteristic of Alstroemeria, thereby extending the overall visual life of the cut flower stem.