REY PIMENTEL’s Exciting New Hoya Hybrids

A yellow progeny of Hoya cumingiana crossed with Hoya archboldiana.

If you are a Hoya lover, Rey Pimentel’s new crosses will surely excite you no end. His initial crossing of Hoya cumingiana, an indigenous species originally collected from Mindoro, with Hoya archboldiana from Papua New Guinea and Australia, has generated more than a hundred plants that have produced flowers of various hues. The bad news is that they are not ready for release because they have to undergo further evaluation and selection. At any rate, we are going to show you some beautiful pictures of the progenies.

Another progeny from the first crossing of H. cumingiana and H. archboldiana
A third progeny.

Of course many lovers of flowering plants know Reynold Pimentel as the original breeder of the Hibiscus series while he was with UP Los Baños. He is now retired but he has been taken by a multinational company to work on hybrid papaya and pineapple. However, he is free to pursue his personal breeding of his favorite flowering ornamentals. His latest obsession is to produce Hoya cultivars by crossing the many native and endemic Philippine Hoya species with other varieties with desirable traits.

A fourth progeny
Another interesting progeny with lots of flower in one umbel.
One more interesting progeny.

He crossed H. cumingiana as female parent (pod bearer) with H. archboldiana in September 2016. Three months later, he harvested the pod from which he was able to germinate more than a hundred seedlings. He said that H. cumingiana has small but very colorful flowers. It has a semi-pendent growth habit. On the other hand, H. archboldiana has a viny growth habit and bigger flowers. By late 2017, the first progeny started to flower. The others flowered later. There are some that are flowering only in 2019.

Another exciting progeny of H. cumingiana and H. archboldiana.
This is one more progeny. Which one would you choose if you are made to choose just one?

ReyP (that’s what friends call him) said that his goal in breeding is to generate Hoya cultivars using as parents the many indigenous and endemic Philippine species. He pointed out that there are 116 endemic species in the country. These generally have small flowers but are more colorful than other foreign cultivars.

What are the characters that ReyP is looking for in his hybrids? They should be regular bloomers, the flowers should have good form. Color and size are also very important. The flowers should stay fresh longer on the plant. He observes that flowers of many species drop after only three days. He is excited about his crosses because he has observed that some have flowers that stay fresh on the plant for 7 to 15 days

The is Hoya cumingiana which was originally collected in Mindoro by Hugh Cuming. It is also found in the Cordillera, Bataan, Rizal, Camarines and other places. The flowers are smaller than that of the Hoya archboldiana
This is the Hoya archboldiana which was used as the male parent crossed with Hoya cumingiana. The flowers are bigger than those of H.cumingiana.

What’s next for ReyP? Always keep abreast of his moves. He is now going to use a newly discovered species from Biliran Island as one of the parents in his breeding program. This is the Hoya kutis porcelana.

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