From fwsawyer@cox.net Sat Jul 24 10:19:37 2004 Date: Thu, 8 Jul 2004 09:57:11 -0400 From: Fred Sawyer Reply-To: Fred Sawyer To: Walter Sanford Subject: Re: Botanical Clocks [ The following text is in the "iso-8859-1" character set. ] [ Your display is set for the "US-ASCII" character set. ] [ Some characters may be displayed incorrectly. ] Walter, I've never tried it - I'm sure that even at its best it is only very very approximate. Performance probably also depends on match of plant and location. I've given below a listing of various plants that have been suggested - one list (with alternatives) by Linnaeus and the other from an article that appeared in the BSS Bulletin. The numbers represent their assigned times. Fred ----------------------------------------------- Linnaeus 1 Sonchus tenerissimus 2 Tragopogon porrifolius 3 Convolvolus arvensis 4 Hemerocallis flava 5 Rosa canina (Dog Rose, Brier Rose) 6 Hieracium pilosella 7 Sonchus oleraceus 8 Anagallis arvensis (Scarlet Pimpernel) 9 Calendula officinalis (Pot Marigold) 10 Tigridia pavonia (Tiger Flower, Shell Flower) 11 Ornithogalum umbellatum (Star of Bethlehem) 12 Mesembryanthemum (Livingston Daisy or Ice Plant) 13 Dianthus barbatus (Annual Sweet William) 14 Geranium robertianum (Herb Robert, Fox Geranium, Bloodwort) 15 Portulaca grandiflora (Portulaca, Rose Moss, Sun Moss, Wax Pink) 16 Alyssum (Sweet Alyssum, Mountain Alyssum, Basket of Gold) 17 Mirabilis jalapa (Four o'clock) 18 Pelargonium triste 19 Papaver nudicaule (White Poppy, Iceland Poppy) 20 Poligonum convolvolus 21 Datura arborea 22 Ipomea purpurea (Tall Morningglory) 23 Selenicereus (Queen of the Night, Night-Blooming Cereus) 24 Cactus grandiflora 3 Convolvolus sepium 4 Trapogon pratensis 5 Cicorium inthybus 6 Lino 7 Nymphea alba 8 Calendula officinalis (Pot Marigold) 10 Malva (Hollyhock Mallow) 13 Portulaca (Portulaca) 14 Scilla maritima 17 Silene noctiflora 18 Mirabilis jalapa (Four o'clock) 20 Cereus peruvianus (Peruvian Apple Cactus) 6 Spotted Cat's Ear 7 African Marigold 8 Mouse-Ear Hawkweed 9 Prickly Sowthistle (Closing) 10 Common Nipple-Wort (Closing) 11 Star of Bethlehem 12 Passion Flower 13 Childing Pink (Closing) 14 Scarlet Pimpernel (Closing) 15 Hawkbit (Closing) 16 Small Bindweed (Closing) 17 White Water Lily (Closing) 18 Evening Primrose Flower Power, Bulletin of the British Sundial Society, October 1991, 91.3:4 ----- Original Message ----- From: "Walter Sanford" To: "Fred Sawyer" Cc: "Fred Sawyer" Sent: Thursday, July 08, 2004 1:28 AM Subject: Botanical Clocks > red, > > I have a long-standing interest in the idea of a hybrid sundial-botanical > clock. After reading your blurb in the last issue of "Compendium" re: the > Amazon/Marshall Field's kit, I ordered one of them (I think it was the > last one in stock). The parcel arrived a couple of weeks later. After > reading the info that came with the kit, I realized that it was too late > in the growing season to start from seed most of the plant types in the > kit. Undaunted, I hooked up with a local gardening expert who has > generously shared both her expertise as well as some live plants from her > garden. For the past week-or-so, I have carefully observed the flowering > habits of several plant types -- must say I'm more than a little > disappointed by my observations! More later, if you're interested. Long > story short, have you actually experimented with botanical clocks? If so, > then I would appreciate any wisdom that you can share. Thanks for your > advice! > > ================================================================= > Walter Sanford, Director Carl Sandburg Middle School > Center for Sky Awareness 8428 Fort Hunt Road > Sandburg Planetarium Alexandria, VA 22308 > Fairfax County Public Schools Work: 703-799-6169 -6197 (fax) > E-mail: wsanford@wsanford.com Home: 703-765-9392 > AMS Project ATMOSPHERE Atmospheric Education Resource Agent & > Water in the Earth System (WES) Resource Teacher > SCSA, Geosystems, & Camp T-Equity - URL: http://www.wsanford.com/ > ================================================================= > >