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Jacaranda – now in blossom!

March 12, 2011

Jacaranda spp. (Bignoniaceae) has a poor reputation in Chiang Mai, because people tend to water them in the dry season and thereby induce leaves hiding the blossom. If you sacrifice your lawn, not only will you save water and money, but you will be rewarded with a cloud of blue blossom. It is good for areas where you do not have the time for frequent care. In fact, this South American lady does not need you. It is perfectly content with following the seasons. We suggest you plant it in an area where you can observe the tree from a distance. In Chiang Mai your seedling will usually produce blossom after 3-4 years.

Eric Danell

Jacaranda obtusifolia ssp rhombifolia, now in blossom at Dokmai Garden.


The leaflets of J. obtusifolia ssp rhombifolia (=J. filicifolia) are rhomboid, or at least shaped like parallelograms, asymmetrically attached to the stalk. Another species grown in Thailand is J. mimosifolia, but that species has pointed leaflets like spearheads. Both species originate in Brazil, and both species are referred to as ‘si Trang’ in Thai language, although the former species is supposedly the province tree of Trang. There are about 50 species of Jacaranda, all native to South America.

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