Skip to main content
10 votes
Accepted

What is this whitish feather on my Echinacea seedlings?

That looks like fine root hairs on the hypocotyl of a normal , healthy seedling still in the cotyledon stage. These root hairs greatly increase the surface area of the root and are thought to aid in ...
Ben W's user avatar
  • 1,486
10 votes
Accepted

A seedling with three (instead of two) cotyledons

It happens occasionally - not uncommon in chilli pepper, tomatoes and cannabis plants. It doesn't seem to confer any advantage and usually, the seedling continues to grow normally, with two true ...
Bamboo's user avatar
  • 134k
8 votes
Accepted

What are these flowering perennials with white flowers?

Well they're Yucca - I think they're Yucca flaccida rather than Yucca aloifolia (Spanish Bayonet) because the outermost leaves appear to be flopping outwards rather than remaining upright. Although I ...
Bamboo's user avatar
  • 134k
7 votes
Accepted

Why do people say perennial food crops only produce for a few years?

Nothing lasts forever.The term perennial simply means a plant that will last for more than 2 years. That can mean 3 years that can mean 50 years or more. As the plants age they can lose their ability ...
OrganicLawnDIY's user avatar
7 votes
Accepted

Do I cut back all herbaceous perenials in fall?

That is a very broad question - and there probably is no "one fits all" answer. I personally tend to leave most them alone in fall for four reasons: decorative purposes Many "spent" plant parts look ...
Stephie's user avatar
  • 16.6k
7 votes
Accepted

Help identifying this perennial grass-like plant

This is Galanthus nivalis and it grows from perennial bulbs, that's why it comes back every year. If you want it to spread, separate the bulbs every few years. If you want to get rid of it, dig out ...
Alina's user avatar
  • 5,446
6 votes
Accepted

What is this perennial, mauve flowering herb?

This is Hepatica nobilis (also Anemone hepatica). It grows on forests. An other name is Hepatica triloba because of the form on leaves. [And there is also a Vinca minor]
Giacomo Catenazzi's user avatar
6 votes
Accepted

Long lived plant identification

Sedum spectabile - there's more than one pink variety, and one with darker more reddish flowers called 'Autumn Joy'. It's an herbaceous perennial, hardy, and the flowers are popular with some ...
Bamboo's user avatar
  • 134k
5 votes
Accepted

What is this six-petaled white flower with long narrow leaves?

To me it's an Ornithogalum, maybe a O. umbellatum (grass lily, nap-at-noon, or eleven-o'clock lady). Same family of Zephyranthes. These plants should build a lot of small bulbs. You can try to dig ...
Giacomo Catenazzi's user avatar
5 votes
Accepted

Should perennials purchased at a greenhouse nursery be acclimatized before planting outside?

If the plants apparently have never (or not for a while) been exposed to strong sun and wind, I would definitively recommend hardening them off or shielding them a bit: If the plants look basically ...
Stephie's user avatar
  • 16.6k
5 votes
Accepted

What is this tall perennial with fragrant white flowers?

I am confident that this is Valeriana officinalis. "Valerian is a perennial flowering plant, with heads of sweetly scented pink or white flowers that bloom in the summer. Valerian flower extracts ...
Brenn's user avatar
  • 3,056
5 votes
Accepted

Can a Mexican sage survive losing all its stems?

These things happen (in my case, my cats get excited and "boticidal"). They just might survive. I would leave any leaves that are still on the plants there, protect them from any further damage, ...
Srihari Yamanoor's user avatar
5 votes

What's the best way to grow Crocosmia from seed?

We frequently buy cut flowers and enjoy them on our dining room table. Once spent, we toss them out the back door into the azalea hedge beside a little creek that runs behind our house. Lo and behold, ...
Julie Martin's user avatar
5 votes

How to plant herbaceous perennials under an existing tree without harming it

Just going by your description of how this tree roots, it doesn't appear ideal for planting around, either by digging or by raising the bed. So, I'd suggest placing containers with herb starters, ...
Srihari Yamanoor's user avatar
5 votes

Is it possible to transplant irises without the rhizome?

Those look like Japanese iris (Iris sanguinea). They have a smaller, clumping rhizome rather than the large spreading tuberlike rhizomes of the bearded iris (Iris x germanica). They can grow a long, ...
J. Musser's user avatar
  • 51.8k
5 votes
Accepted

Recommendations for removing a plant from a perennial border

A systemic weedkiller or just digging out would be the best way, don't use newspaper- often has the result of attracting unwanted pests like slugs to scene and doesn't really break down as fast as one ...
olantigh's user avatar
  • 2,252
5 votes

What is this daisy with narrow white petals and a yellow center, that the local deer won't eat?

This is a Shasta Daisy. Deer resistant. No plant is truly is deer proof. shasta daisy
stormy's user avatar
  • 40.5k
5 votes
Accepted

Do deer eat Creeping phlox (Phlox subulata)?

I do have personal experience, and it depends on snowcover and available food. Phlox subulata is not known to be deer resistant, so if it's an "open" winter and more tasty food is not available, the ...
Jurp's user avatar
  • 19.7k
5 votes
Accepted

Mint ID Requested

This is a beautiful specimen of Lantana camara, a member of the Verbenaceae family. It’s not a mint, but many Verbenaceae are scented and some are used as herbs, for example lemon verbena and vervain. ...
Stephie's user avatar
  • 16.6k
5 votes
Accepted

Plants for under blue spruce tree

A chunk of my garden is acidic, mostly dry shade, so here's what does well for me: Groundcovers: Lingonberries (Vaccinium vitis-idaea) - may require more water than you have under the trees, ...
Jurp's user avatar
  • 19.7k
5 votes

First year to grow gladiolus and they all seem to be the same colors?

Have patience, at least two weeks. In my collection there is a definite order of appearance from corms planted all at the same time, and my 5 colours go: orange, lavender, crimson, white, scarlet with ...
Colin Beckingham's user avatar
4 votes

Hearty Flowering Perennial for curbside appeal

You could try some Aubrieta - I will try these out myself next season, they have dense flowering, are available in white but mostly purple, you can grow them by seeds so relatively cheap to do a large ...
Damo Frankcom's user avatar
4 votes
Accepted

When should I remove the spent stalks on my daylilies?

If you have the time, clip out the flowered stems as close to the base as possible now; if you clip out one or two leaves by accident, that's not a problem, many professional growers deliberately ...
Bamboo's user avatar
  • 134k
4 votes
Accepted

How do I prune Verbena bonariensis?

I'm having to think hard about this because you're in the other hemisphere from me! Right, so it must be summer heading into autumn where you are, and your pictured plant doesn't appear to have been ...
Bamboo's user avatar
  • 134k
4 votes
Accepted

Do any bulbing bunching onion varieties multiply like potato onions?

I contacted Baker Creek to find the answer (since they grow both of the varieties I referenced in the links: Crimson Forest and He Shi Ko; He Shi Ko isn't the bulbing type, though—just Crimson Forest, ...
Brōtsyorfuzthrāx's user avatar
4 votes
Accepted

Raising bed of Peonies

Two feet of soil on top is too much, so I'm afraid you will need to dig them up, spread your extra soil, then replant. Best done in autumn, and you should really leave the extra soil for a week to ...
Bamboo's user avatar
  • 134k
4 votes
Accepted

What is this pungent plant with spikes of purple flowers?

I just found out that the plant is Plectranthus neochilus. A nearby nursery also calls its aroma "skunky"!
Aaron Brick's user avatar
4 votes
Accepted

What should I consider before vacuum-sealing seeds for storage?

The enemies of seeds are: heat, light and humidity, by controlling these you can store some seeds for many years. Keep seeds at a cool to cold temperature of 40 degrees or less. Avoid fluctuations in ...
Jason Delaney's user avatar
4 votes
Accepted

What are differences between Echinacea purpurea and Echinacea angustifolia?

Echinacea purpurea is the more commonly grown one - it tends to grow better in more easterly regions than E. augustifolia (which is native to the North American prairies). In appearance, E....
Bamboo's user avatar
  • 134k
4 votes
Accepted

Are these small hairy leaves first true leaves of my rudbeckia seedlings?

Yes, absolutely, they look quite hairy at this stage - image in this link, but scroll down to find it https://wimastergardener.org/article/prairie-sun-black-eyed-susan-rudbeckia-hirta/
Bamboo's user avatar
  • 134k

Only top scored, non community-wiki answers of a minimum length are eligible