Waiting for the rain …

Last year we waited for the rain. The rain heralds the start of the orchid season. Last year the season was dry, very dry. It was below average and it was hot.

So how did the orchids fare in the Adelaide Hills? The start of the season was slow with our first field trip not being until May 26 because of the lack of rain.

At the time, the smallness of the plants was noticeable with one specimen of flowering Leporella fimbriata standing no more than 2 cms. Normally  the flower stem can be up to 25 cms tall. This trend of smaller plants continued throughout the year.

The following two photographs show the difference in size.

Small Leporella fimbriata

A miniscule Leporella fimbriata near an ant nest

Leporella fimbriata sm

And on January 28, we came across the smallest flowering Dipodium pardalinum that we’d ever seen. Normally, this genus can grow up to about 100 cms in height but this one barely reached above the height of Robert’s shoe, ie, about 10 cms. True this was an exception but overall there not many plants, and even they were spindly and small in comparisons with previous years.

Below are two photographs illustrating the size difference

Small Dipodium pardalinum

A very tiny Dipodium pardalinum

Dipodium roseum

An average sized Dipodium

So what is the outlook for orchids for 2019? That will depend upon the rains.

When does the orchid season get going? Again that depends upon the rain but expect to see the autumn orchids about six to eight weeks after a good rain episode.

So we wait for the rains ….

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The time has arrived

If  you want to see the Helmet Orchids, now it the time of year to find them.  My understanding is that the time from leaf mergence to capsule is about six weeks.  In the past week I’ve seen Corysanthes diemenica (Veined Helmet Orchid) both in the north and the south of the Adelaide Hills.  Corysanthes incurva ( Slaty Helmet Orchid) appears slightly later, end July early August, and will now be in bud.  Look for them amongst the leaf litter.

 

Corysanthes diemenica (Veined Helmet Orchid)

Corysanthes diemenica (Veined Helmet Orchid)