"Producers who already have planted have some winter annuals
coming up," she said.
Stinkwort (A) is a late-season winter annual
. The aromatic leaves (B) have sticky hairs covered in resin.
It is a winter annual
. If you mow it, it seems to just hunker down and continue to flower.
* Winter annuals
are planted in the late summer to early fall, grow vegetatively before winter, overwinter in a dormant state, and flower in the spring.
In some southern states diquat is used for winter annual
weed control in dormant bermudagrass.
Summer annuals are more numerous than winter annuals
. Some common grasses are large crabgrass, goosegrass, and giant foxtail.
They're sustained by the seed crop of those winter annuals
. A lot of the biodiversity we see in insects--the native bees especially is sustained by those same wildfiower displays.
Under field conditions, sowing date will strongly influence the developmental stage reached by the winter annuals
On average, winter annuals
have larger seeds than do summer annuals (Brown et al.
The responses of native annual plants to the thinning treatments were evaluated by collecting annual plant samples when winter annuals
reached peak biomass and before they began to senesce.
Although rye was used in this study, it is likely that other less cold tolerant winter annuals
would be nearly as effective in settings where early planting dates are possible and post-harvest soil nitrate levels are moderate to low.
Creating your own strain by selection is not that difficult but many people treat polyanthus as winter annuals
, discarding them after flowering.