what is the best way to distinguish tall flowers from weeds?

Answer 1

A weed is just a plant in the wrong place so re-designate all your weeds to be plants and you'll have no problem!
Also, if you can pull the plant out of the earth easily, or if it gets eaten by deer, rabbits, etc, or if pests love it, then it is a plant. If you have to dig to the center of the earth to get all its roots out or the animals, pests, etc avoid it then it's a weed.

Answer 2

A weed is simply a plant growing where you don't want it. Roses are weeds in a veggie garden, tomatoes are weeds in a lawn, kentucky blue grass is a weed in a rose garden. Many "weeds" are garden escapes, their seeds escaped from a neighbouring garden and landed in yours.

Some plants are considered weeds no matter where they grow because they are invasive and difficult to eradicate or because they displace native plants or food plants or because they carry diseases that can harm garden plants or crops.

You will need to identify a flower to tell whether it is a weed or not. Borrow a good field guide to wildflowers like Peterson's or a weed guide (many published by government Dept of Agriculture) from your local library. Use the guide to identify the plant. The guides may say whether the plant is invasive or you can research it on the Internet.

Finally, if you like the plant where it is growing and it is not on the invasive list, consider keeping it!

See the link below for weed ID resources

Answer 3

We had this same problem, if the plant gets pretty big and gets a weird looking thistle looking flower, it is a weed. Once you can recognise the weed, you can recognize it when it is small.

We had this problem with birdseed droppings spreading all over are flower bed.

Answer 4

when you pull on them, the flowers come out easily; weeds are harder to pull out

Answer 5

wit till they bloom, If you don't like them , they're weeds. if you do, they are wildflowers.

Answer 6

if you didn't plant it i would say it's a weed.