What is the most hardy jasmine?
Winter jasmine (Jasminum Nudiflorum)
Also known as hardy Jasmine, this is a type of jasmine that can grow in colder regions without an issue. It does well in US hardiness zones six to 10, and it can quickly grow to be up to 15 feet tall when it is mature. It should be grown in well-drained soil and full sun.
Jasmine officinale also known as the “Hardy Jasmine” is revered for its ability to be grown in cold climates. In freezing climates, it's a deciduous vine and can be grown outside down to 0°F.
All jasmines prefer full sun to partial shade. The ideal planting position should be warm, sunny and sheltered. They grow well in regular, well-drained garden soil with moderate levels of soil fertility and moisture. Containerized plants are best planted in the fall.
A true garden treasure, Star Jasmine (Latin name Trachelospermum Jasminoides) is an evergreen climber with lovely dark green leaves that turn red in winter. From mid-Summer until early autumn, Star Jasmine produces an abundance of beautiful small white flowers that are intoxicatingly fragrant.
To start off, Star Jasmine is not actually a true jasmine. The botanic name is Trachelospermum jasminoides and other common names are Confederate Jasmine and Southern Jasmine. The reason it is commonly called to as Star Jasmine is that the white flowers resemble that of jasmine.
Confederate Star Jasmine: This vine is also rated Zone 8, but a sustained freeze will often kill it back, sometimes to the ground. Scratch the vines to see if there is still green under the bark. If there is, cut the top back a few feet if it is tall, and wait for it to leaf out.
nudiflorum) is hardy throughout the state. It is an “old-timey” shrub often found around Victorian homes. Mature Height/Spread: This deciduous viney shrub grows to 4 feet high when unsupported, and 7 feet wide. When trained on a trellis or wall it can grow to 15 feet tall.
In temperatures below 10 F, star jasmine will start losing leaves as the cold damages them. If frigid temperatures persist, the non-woody stems eventually die back to the woody portion of the stem. A harsh winter or repeated below-average low temperatures will kill the jasmine roots.
This surprisingly hardy vine thrives in gardens west of the Cascades offering intoxicating fragrance and a resilient demeanor. Well-loved throughout the world for its heady fragrance and graceful manner, Jasminum is a broad genus of more than 30 species of shrubs and vines in the olive family.
Jasmine Plant Care
Watering – Jasmine flowers that are in-ground should be watered once a week. If it is unusually dry or hot, increase the frequency, but let the soil dry out in between. If your jasmine is in a container, it will likely require water multiple times each week, especially in the hotter months.
Why is my outdoor jasmine not flowering?
The non-flowering jasmine may be living in the wrong growing conditions. Light and the right temperature are necessary for blooms from the jasmine that is not flowering. Temperatures should fall between the 65 and 75 degrees F.
Even though jasmine is usually found as a small plant in full bloom, the plant can grow quite vigorously and be invasive in warmer, tropical regions. Many vining jasmines can root wherever a stem piece touches the ground, which allows them to create dense mats of foliage.
And although they are quite big – strong twining climbers that can reach 40ft – they are perfectly happy to share space with other climbers, such as roses. They are also perfect for growing on a wall, over the front porch or round the patio doors, or for cladding a trellis screen, arch or outbuilding.
Although a vine, star jasmine is relatively short in stature. It is a woody evergreen plant that is winter-hardy in USDA hardiness zones eight through 10. Further north, it is sometimes grown in pots and brought indoors for the winter, or grown as an annual and planted anew each spring.
Star jasmine has small, glossy, dark green leaves that are evergreen foliage in warm climates. The fragrant white jasmine flowers appear in April through June, depending on your climate. Star jasmine is a versatile plant.
Star jasmine (also known as Trachelospermum Jasminoides) is one of the fastest growing climbers and will quickly cover walls, trellises and fences.
Common jasmine (Jasminum officinale), sometimes called poet's jasmine, is one of the most fragrant types of jasmine. The intensely fragrant flowers bloom throughout the summer and into the fall. Expect the plant to grow 12 to 24 inches (30.5-61 cm.) each year, eventually reaching a height of 10 to 15 feet (3-4.5 m.).
Growing Jasmine can create a perfumed shield over arbours, trellises and fences. Good for companion planting are corn, beans and squash. Clematis vines also grow well with Jasmine.
To keep jasmine plants over winter outside their rated zone, you need to bring them indoors. Growing them in pots makes moving the plants indoors for winter much easier. Even so, dry indoor air and inadequate sunlight may cause the plants to lose their leaves and they may even die.
Star jasmine will survive winter with 2-3 inches of bark mulch, regular water and if they are given organic fertilizer in the fall. Star jasmine can lose their leaves in winter but recover quickly in spring once the weather warms up.
When should I plant jasmine?
You can plant summer jasmine in your garden in spring or autumn, although less-hardy varieties should be protected or kept in a greenhouse over winter. Most varieties survive well in a sheltered spot outside.
Too much shade may cause a lack of blooms, which means a lack of the sweet fragrance its night blooms provide. Night-blooming jasmines are not particular about soil, but they do need to be watered regularly during their first season.
When blooming, the flowers may last for several days on the vines or may fade after 24 hours depending on the species.
Summer jasmine blooms in summer and early fall, and winter jasmine blooms in late winter and early spring on vines that developed the previous season. Prune them immediately after they flower to give the vines time to develop growth for the next flowering season.
Jasmine is best pruned right after flowering, at the end of summer. This leaves plenty of time for new growth time to mature. Simply prune back flowered stems to a strong sideshoot lower down.