Maui Association of Landscape Professionals

Plants that make scents

From the Summer 2006 MALP Newsletter
By: By T&T Nutt
Not many people associate fragrant flowers with Deadly Nightshade, commonly referred as The Potato family. The Latin name is Solanacae. Generally, we acknowledge the plants in this family for food and medicine or just the fact that many are highly toxic. Isn’t it fascinating how one particular family of plants can impact our daily lives?
To think, Tomatoes and Potatoes growing in your garden are related to the Black Night Shade you just weeded out, or that Tobacco in a cigarette butt you cleaned from that same garden is a cousin to the Petunias, coloring your flower beds. And don’t forget, Eggplant that goes in Eggplant Parmesan is a relative to the Chile Pepper spicing up your Salsa.
Two of the Nightshade family members recognized for fragrance would be the Angle Trumpet Tree and Night Jessamine. Some people can be overwhelmed by these blooms because they can dominate the evening air with a such a strong, sweet aroma. Certain people even claim they experience a feeling of light headedness when inhaling their sent. Another caution to remember is that some plant parts from Night Jessamine and all parts of the Angle Trumpet Tree are toxic. Make sure to wash your hands after handling, and especially be careful around eyes or open wounds. This is where the similarities end. By contrast the Angle Trumpet Tree and Night Jessamine they are two very different plants.
The Angles Trumpet Tree Brugmansia x candida, (also know as Tree Datura) is a hybrid from South America arriving in the Hawaiian Islands 180 years ago. Trees prefer full sun, plenty of water and a well drained loamy soil with periodic fertilizing and mulching. They are not drought tolerant and will drop leaf under stress. Angle Trumpet Trees do not handle windy and salty conditions. A small tree ranging from a height of around 15 feet with leaves growing 12” to 15” inches in length. This is one of the few trees I prune heavily because extensive pruning encourages flower and maintains the trees shape. Flowers are trumpet shaped 10” to 12” in length, hanging like Chinese lanterns in colors from white to cream, or pink to pale orange. Blooming in the Hawaiian Islands can be year round, although, heaviest during full moon.
I have not seen the Angle Trumpet Tree fruit, however, the plant starts easily from cuttings, and can also be started from root shoots. Insect pests include the Chinese Rose Beetle which attacks at night and chews unsightly holes in the leaves. This does not seem to effect the health of the plant other then external appearance. People also complain of infestation of red spider mite.
Night Jessamine, Cestrum nocturnum, is one of the most famous and desirable fragrant plants. Erroneously called ‘Night Blooming Jasmine’ its flowers are pale yellow to white, opening and remaining extremely fragrant until sunrise. Aroma is sweet,pleasant and intoxicating. These flowers are widely used in India and other countries of South Asia for perfumery, medicinal applications and in religious ceremonies. Jessamine is a fast growing bushy shrub. The flowering period is in late spring to early summer. Extreme pruning is recommended after each flowering cycle to encourage new growth and remove old dead wood. Plants will become sparse with age, if not pruned excessively. Propagation from seed or cutting start very easy, can be grown as a hedge or single specimen plant. Insect problems can range from red spider mite to white fly or scale infestations, but for the most part I personally have had no insect problems with this plant.
So here’s an example of expanding the potato family from garden into the landscape, appeasing the eye while exciting the nose. Angle Trumpet Tree and Night Jessamine truly make scents to grow.
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