Bee on Sedum, Autumn Joy
Riches in the soil, prosperity in the air, progress everywhere.
A fancy term for a simple concept, relay cropping involves growing a fast and quick-maturing crop alongside one that takes longer to mature. To maximize space, tomatoes and tomatillos -- tall plants that take a long time to mature -- are grown among salad greens that grow and mature quickly. The lettuce growing around the tomato plants keeps the weeds down and moisture in. With a week or two, the tomatoes begin to tower over the lettuce, allowing room for both. When the weather begins to warm up causing the tomatoes to take off, it's time to harvest the last remaining lettuce before it bolts and turns bitter. Picture: Sungold tomato growing among red sails lettuce.
It's been spring for a little while, but it's cold as the dickens out there. Many vegetables, even the frost-hardy ones, can wither if it gets too chilly. An easy, if not exceedingly attractive, way to protect tender plants is by putting old Kahlua bottles, milk cartons, or even cardboard boxes over the top. From experience, I sleep better in cardboard than surrounded by Kahlua (though I do like Kahlua-soaked dreams) and I trust my plants feel the same. Seriously, corrugated cardboard works quite well. According to the experts, it's best to put your covers on before it get too cold and try to water your garden before doing so -- the extra water will prop up the temperature a bit.
Good list of the various frost tolerances for plants here.
Around these parts warm weather means shotgunning Miller High Life, moving my weight bench to the front yard, and planting frost-hardy leafy vegetables. Buttercrunch, mesclun, and red sails, one of last year's better performers were planted today.
The first bloom came about a month after they peeked through the soil and about a week-and-a-half ahead of last year.
(top: crocuses; bottom, clockwise: azalea buds, hydrangea leaf, rhododendron leaf bud, peony eyes emerge)
Faithful readers of this blog, all five of you including two inmates in a Hungarian penitentiary, know that I'm about as big into phenology as one could be. See?
Plants grow best at temperatures above 50 degrees. So, instead of looking at the calendar to see where your plants should be, it's better to see how often it's been above 50 degrees. Enter: the growing degree day, a rough calculation of how much the weather has been above 50. It's a useful indicator for gardeners because plants bloom, insects emerge, and celebrities wither at set phenological times. For instance, dandelions first flower at about 50 growing degree days, lilacs at about 238. (Kiddos - enter your phenological data here. Don't mention it to your friends. You'll surely remain dateless at prom if you do.)
Starting last year, all updates on this here "world wide web log" were keyed to GDDs, setting up comparisons (and fodder) for this year's posts.
The link below generates maps GDD across the county, allowing New Englanders to obtain a graphical representation of some of their poorer horticultural decisions as they covet gardens of warmer climes. GDD Maps.
Sources: U. Mass., U. Wisc. Penn St., Project Bud Burst
It's time to sow seeds in my garden like a sailor on shore leave with just days to live. But, when exactly? The backs of seed packets are vague and often offer little guidance, so below is a bit more guidance gleaned from the internet.
With afternoon temperatures near 48, a new garden bed behind the garage was prepared. Gone are a bunch of hostas that were mere placeholders last season until a better idea was hatched. That idea now is a cutting garden. Larkspur, poppies, and cornflower were sown today as soil temperatures were around 38, but, at that temperature, germination could still be weeks away.
Cleome
When: After last frost when ground is warm, although one site from Virginia Tech suggested late fall or early spring.
That's Neat: Needs oscillating temperatures of at least ten degrees. Germination is best with 80 degree days and 70 degree nights. Light is necessary for germination.
Sources: Garden Guide, Floridata, Plant Files, Virginia Tech, How Stuff Works, Goldsmith Seeds
Bachelor Button / Cornflower
When: 1 to 2 weeks before last frost.
Sources: Dave's Garden, Garden Guide, Virginia Tech Weed ID Guide
Corn Poppy "American Legion" Papaver rhoeas
When: As soon as soil can be worked.
Light: Full sun to partial shade.
Sources: Ovm-Seed, Dave's Garden, Taunton, Gardening Tips, Suite 101, Texas A & M, Michigan State,Iowa State, Purdue University (fantastic guide to all sorts of flowers), UC Riverside
Celosia Cristata / Celosia argentea "Pampas Plume"
When: Outdoors, when soil temp is about 60 F and all risk of frost has passed.
Sources: Texas A & M, Purdue University, U. of Md., Yankee Harvest, UVM
Larkspur Consolida ajacis
When: As soon as soil can be worked.
Light: Sun to partial shade
That's interesting: Poisonous if ingested, yet the genus, consolida, is a reference to its medicinal ability to heal wounds.
Sources: Garden Guide, U. Maryland, Texas A & M, U. Maryland, Colorado St., Brooklyn Botanic, Calendula and Concrete, Gardener's Network
Zinnia Zinnia elegans
When: After the danger of frost has passed and soil sufficiently warmed.
Sources: Virginia Tech, University of Kentucky, Iowa State, U. Wisconsin, U. Florida
Nasturtium Trapaeolum majus
When: After all danger of frost has passed.
That's neat: An aphid magnet, it's a good decoy to plant in vegetable gardens. Fully edible with a taste akin to watercress.
Sources: U. Kentucky, U. Wisconsin, Garden Guide, Texas A&M
General Sources
Seeds of Change, Seed Database from Hort Net
Ignoring the snow flurries, frozen lakes, and little dogs swaddled in ridiculous sweaters, northern gardeners have been known to push the boundaries of spring. For those eager folks, here's a useful map from Intellicast that identifies areas subject to freezing and frosty temperatures.
The soil in the raised bed warmed to 40 degrees, prompting me to plant the first crop of the season - Burpee's Super Sugar Snap Peas. Having great success with plain sugar snaps last year, a full 8' row of peas were planted. Following Jim Crockett's advice -- if you're stingy with your peas, they'll be stingy with you -- seeds were liberally spread. Wise words. Wise man.
Righting last year's improper citing of the raised bed, the bed was moved 30 feet east a bit south to take better advantage of the sun. During the height of summer last year, the bed received as few as four hours of direct sunlight, which lead to less-than-impressive yields.
Also, a quick soil test showed that my soil is slightly alcaline and depleted of nutrients.