From the moment you cut the daffodil stem, the plant perceives it as a wound and initiates a healing response. Its primary goal is to seal the vascular system to prevent air bubbles, known as embolisms, and the loss of precious moisture. To assist the plant in this critical phase, use a sharp, clean knife or shears. A clean cut crushes fewer cell walls than a crush from dull scissors, allowing for better water uptake. Crucially, cut the stems at a 45-degree angle. This angled cut increases the surface area for water absorption and prevents the stem from sitting flat on the bottom of the vase, which would block water intake. Perform this cutting under a gentle stream of lukewarm water or in a bowl of water to prevent air from being immediately sucked into the xylem vessels.
Daffodils exude a milky, sticky sap from their cut stems. This sap is rich in alkaloids, primarily a compound called mucilage, which is the plant's natural defense mechanism against pests and microbes. However, this very sap can be detrimental to other flowers and can even clog the daffodil's own vascular system as it coagulates in the water. From the plant's perspective, it is successfully sealing its wound, but this process shortens its vase life. The solution is to condition the daffodils separately. After cutting, place them alone in a container of cool, clean water for at least 4-6 hours, or preferably overnight. This allows the sap to leach out and the stems to fully hydrate before they are arranged with other flowers, which might be sensitive to the compounds in the sap.
Once conditioned, the daffodils need an environment that mimics their natural conditions as closely as possible to slow down transpiration (water loss through leaves and petals) and support metabolic processes. Fill a perfectly clean vase with cool, not icy, water. Cool water contains more dissolved oxygen, which helps keep the stem tissues healthy and reduces bacterial growth. Add a commercial flower preservative. To the daffodil, this solution is a complete nutrient package. It provides sugars for energy (replacing what it can no longer produce via photosynthesis), an acidifier to lower the water's pH (making it easier for the plant to take up water), and antimicrobial agents to suppress the bacteria and fungi that would naturally colonize the water, clogging the stems and causing rot.
A cut flower is a living, respiring organism. Its needs change as it continues its biological processes. Place the vase in a cool location, away from direct sunlight, heating vents, ripening fruit, or drafts. Heat and direct light accelerate transpiration and metabolism, causing the flower to wilt prematurely. Ripening fruit emits ethylene gas, a plant hormone that triggers aging and senescence. Every two days, change the water entirely. This is non-negotiable. Even with preservatives, the water becomes a breeding ground for microorganisms and the stems release organic matter as they decay. When changing the water, re-cut the stems by about half an inch to remove any clogged or decaying tissue at the tip, once again ensuring a fresh, open pathway for hydration. This simple act directly addresses the plant's deteriorating condition and significantly extends its functional life.
Despite your best efforts, the daffodil will eventually begin to senesce, or age. This is a genetically programmed process. You will notice the petals becoming papery and the stem softening. At this point, no amount of care can reverse the biological clock. However, by understanding and catering to the daffodil's physiological needs from the moment of cutting, you have successfully supported it through its entire post-harvest life cycle, allowing its beauty to be enjoyed for the maximum possible duration.