Garden staff and volunteers have been busy this week cutting back plants that have entered their dormancy period. This time of year is much like the autumn for elsewhere in the country, except for crisp frosts that kill plants, our dormancy is brought on by our dry season. Many of our plants are from other Mediterranean climates and have adapted well to cope with our climate.
Still, it is easy to find beauty amongst the seemingly dead and dry plants. The seed heads left behind are sometimes more interesting to look at than the flowers.
One of the most common plant id questions I hear is ‘What are those trees by the Warden’s House?’ Resembling trees with their height, the Dr. Seuss looking trees are actually the flower spike of Agave americana. Silhouetted against the skyline of the city or the evening light, the spikes are so dramatic that even non-plant people wonder what they are. Commonly called the century plant for how long it takes to flower, the plant sends up one spike of flowers after 8 to 10 years; the plant puts all of its energy into sending up the flower spike that it actually dies. The next generation of plants have already begun at the base of the flowering succulent to repeat the show in a decade.
Aeonium arboreum planted en mass are another
succulent that provides a show with their flower stalk. The succulents planted long ago under the water tower all bloomed at once this year. Located in a closed area that is enjoyed by visitors on the garden tour, the view is impressive.
The west side inmate gardens are a host to surviving plants from the penitentiary. With the cell house as a backdrop, Acanthus mollis, bear’s breeches, 4 to 5 foot flowers standing tall above its once glossy green leaves. The leaves are fading and we will be leaving the flower stalks to provide interest for another month.
Many perennials in Officers’ Row are putting on a display of their own. Gaillardia, Agapanthus, Crocosmia, Foxgloves, Hebe and Artichokes are signifying the end of their growing season by setting seed. Many of these plants can be deadheaded to encourage the plant to keep blooming. The ‘deadheads’, as we call them, can make a curious dried bouquet. One of the best dried flowers on the island is Limonium perezii, sea lavender or statice, which holds the purple color well.
Elsewhere on the island, Shirley poppies and Crocosmia both have tiny seed pods that are appealing.
From the tall succulents to the more average size perennials, leaving flower stalks stand allows gardeners to enjoy their hard work longer into the year. Just like the gardens soften the harsh island, finding the surprising beauty in dead flowers will hopefully inspire people to appreciate all that surrounds them.