I am in a state of deep dormancy. My growth has ceased entirely as I conserve energy to survive the cold. If I am planted outdoors in a region where winter temperatures drop below freezing, my roots are safe underground, but my above-ground vines are vulnerable. A thick layer of mulch around my base is essential to protect my root zone from freeze-thaw cycles. If I am in a container, I must be moved to a sheltered location like an unheated garage or shed where temperatures stay cool but above freezing. Water is still needed, but only sparingly, when the soil is dry to the touch, to prevent my roots from desiccating completely.
The days are gradually lengthening, and there is a subtle shift in the light. While still dormant, I can sense the sun's increasing strength. This is a critical time for inspection. Prune away any dead, damaged, or diseased vines that winter may have caused. This cleanup allows for better air circulation and directs my future energy toward healthy growth. Continue to monitor soil moisture, especially if there has been little snow or rain. The goal is to keep my roots just moist, not wet, as cold, soggy soil can be fatal.
As temperatures become more consistently mild, I begin to awaken. Tiny, green buds may start to swell on my vines. This is the signal that active growth is imminent. Now is the time for a more thorough pruning. For summer-flowering varieties like me (Jasminum officinale), prune now to shape the plant and encourage vigorous new growth, which will bear the blossoms. Remove any tangled or weak stems. It is also an ideal time to apply a balanced, slow-release fertilizer to the soil to support the season's coming growth spurt.
These months are a period of explosive growth. My vines will lengthen rapidly, and my leaves will unfurl fully. My primary need now is consistent moisture and support. Ensure I receive regular watering, allowing the soil to dry slightly between waterings. If I am a climbing variety, guide my new tendrils onto a trellis, fence, or other support structure. Pinching back the tips of my shoots can encourage a bushier, more compact form, which will result in more flowering points later.
This is what we have been waiting for! The long, warm days and shorter nights trigger my flowering cycle. My buds will develop and open into the fragrant, star-shaped white (or sometimes pink) blossoms I am known for. To sustain this energy-intensive process, I require ample water, especially during hot, dry spells. A bi-weekly feeding with a fertilizer high in potassium (such as a tomato feed) will promote continuous and prolific blooming. Deadhead spent flowers regularly to encourage me to produce more buds instead of setting seed.
The intense heat of summer begins to wane, and I often produce a final, welcome flush of flowers. As daylight decreases, my growth will start to slow. You can begin to reduce the frequency of fertilization to help my vines harden off in preparation for winter. Continue watering as needed, particularly if the autumn is dry. This is also a good time to take semi-ripe cuttings if you wish to propagate new plants.
My flowering has finished, and my leaves may begin to yellow and drop, especially if I am a deciduous variety. This is a normal and necessary process as I draw nutrients back into my stems and roots. Cease fertilization entirely. A final, deep watering before the ground freezes is important for my winter hydration. After the first hard frost, apply a fresh, thick layer of mulch (like straw or shredded leaves) around my base to insulate the roots from the coming cold.
I have entered a state of full dormancy. My metabolism has slowed to a minimum. My needs are simple: protection and minimal water. Check my mulch to ensure it is still in place. If I am in a container and you live in a cold climate, I must be in my sheltered winter location. Water very sparingly, only to prevent the root ball from becoming bone dry. I am now at rest, gathering strength for the cycle to begin again.
