18 votes
Accepted

How do cucumbers happen? What does "very poorly pollinated cucumber" mean exactly? How can pollination be "uneven"?

It's not so much the number of ovules that are pollinated, it's WHEN the bees visit that determines successful pollination. This is from the Missouri Botanical Garden: Weather conditions are key ...
Jurp's user avatar
  • 19.2k
14 votes
Accepted

What is the difference between male and female asparagus plants, and is it important for growing?

Male asparagus plants don't produce seeds; female plants do. With asparagus, you need to allow some stalks to grow fully over the growing season in order to provide energy for next year's growth. ...
Niall C.'s user avatar
  • 7,209
11 votes

Rotating indoor plants outdoors for pollination, fresh air, etc. How often?

I wouldn't recommend you do this switch at all, frankly. If you choose plants that like filtered sunlight, they're not going to respond well to suddenly being pushed into direct, strong sunlight - ...
Bamboo's user avatar
  • 133k
9 votes

How to make sure a sunflower produces seed?

Sunflowers that self-pollinate produce viable seeds. The only thing to watch out for is inbreeding, that is in a few generations the plants will exhibit traits that you don't see now on your current ...
Alina's user avatar
  • 5,436
7 votes

Can I preserve plant pollen?

Like you said, flowers for cross-pollination don't always coincide. Here's how to harvest and save pollen. After the flower is open, the anthers have burst/opened, and you can see mature grains of ...
J. Musser's user avatar
  • 51.7k
6 votes

Do sterile plants still produce pollen or nectar?

Sterility is not related to nectar production so a sterile plant may or may not produce nectar in the nectary. If the sterile plant produces pollen, then sterility is often due to chromosomal issues ...
Graham Chiu's user avatar
  • 23.3k
6 votes

Red streaks in Louisiana sweet oranges

This has nothing to do with what pollinated your trees this year. But apparently some of your trees have a trace of blood oranges in their ancestral line. Oranges (Citrus x sinensis) are a hybrid ...
Stephie's user avatar
  • 16.4k
6 votes

Brassicas seed saving

I guess you can do it as for other varieties? http://seedworld.com/cross-pollination-8/ Cover the flower heads. This technique (also known as "bagging") will need to be done before the flowers ...
J. Chomel's user avatar
  • 3,740
6 votes

Rotating indoor plants outdoors for pollination, fresh air, etc. How often?

I move some plants outside in the spring and put them in shade for a few weeks so they won't burn. Then it's full sun for the rest of late spring and summer. I move them inside in early fall. Most ...
kevinskio's user avatar
  • 59.6k
5 votes

Increasing Olive Pollination

This study is regarding Manzanillo but it demonstrated that a compatible cross-pollinator can increase production dramatically compared to a incompatible cultivar or even the same type. There is ...
Mark in Oakland's user avatar
5 votes

Plants that attract butterflies and dragonflies

I've always thought of dragonflies as being water-loving - that is where you see them, near rivers and ponds. And their larvae are aquatic. So you need a pond if you want dragonflies that aren't ...
winwaed's user avatar
  • 20.4k
5 votes

What is the fate of this sunflower? Will it produce seeds?

Many sunflowers are able to pollinate themselves using their own pollen in the case that they do not get pollen from a different plant. Now that the ray florets have matured and fallen the seed should ...
Colin Beckingham's user avatar
4 votes

How long can a bell pepper plant thrive while maintained indoors?

My sweet red bell pepper plant is almost through its second summer. It's in a pot, so I brought it in last year and stuck it in a window and watered it daily all winter. It stopped producing around ...
Ari's user avatar
  • 41
4 votes
Accepted

Do sterile plants still produce pollen or nectar?

It depends. As Graham wrote, sometime it is just because of chromosomes: e.g. rejected by female flower, as not "correct". But sometime just the flowers don't produce pollen, or just they don't have ...
Giacomo Catenazzi's user avatar
4 votes
Accepted

What is the radius of wind pollination for sea buckthorn?

As sea buckthorn tends to get large, most sources discuss minimum distance... ^_^ But I did find one source (in German, sorry), that claims up to 50m still works and that insects aid in pollination. ...
Stephie's user avatar
  • 16.4k
4 votes

Brassicas seed saving

Cover the plants with lightweight fabric or row covers, and hand pollinate them yourself. It's a lot of work, and keep in mind that brassicas are biennial so you'll have to wait until year 2 to get ...
llemay's user avatar
  • 186
4 votes

Plants that attract butterflies and dragonflies

Attracting and keeping butterflies around depends on two things - the nectar rich plants they like, and the food plants for their larvae. If you just have nectar rich plants they like, then they will ...
Bamboo's user avatar
  • 133k
4 votes

Drones taking the place of bees

Having learned a bit about bees this past year, I'm disappointed by articles like the one linked in this question. In the excitement to talk about robots, it doesn't address the details of the bees. I ...
greggles's user avatar
  • 1,434
4 votes

What is this tree and do I need a pollinating partner?

If we look closely at the bottom of the leaf blade there appears to be a gland. This could indicate a type of cherry. Further than that it will be hard to be more specific. If you are really lucky ...
Colin Beckingham's user avatar
4 votes
Accepted

How to hand pollinate Narajilla (Lulo)?

Many Solanums use a special pollination mechanism called buzz pollination. It requires a bee to land on the flower and vibrate its wings at a specific frequency before the anthers release their pollen....
csk's user avatar
  • 2,290
4 votes
Accepted

What is the fate of this sunflower? Will it produce seeds?

Whilst sunflowers are wind pollinated by other sunflowers growing nearby, they are also pollinated very effectively by insects such as bees, so yes, it should produce seed.
Bamboo's user avatar
  • 133k
3 votes
Accepted

Ideal plants for rental property?

Plants can never be maintenance free altogether. They will at least need infrequent observation, fertilization, help with infestations and even watering. Drip irrigation is not a set-it-and-forget-it ...
Srihari Yamanoor's user avatar
3 votes

Side effects of introducing cultivated variants of a plant into an area where the wild version grows?

In general the effect is minor. Natural selection already created optimum natural varieties for local environments. Cultivated varieties are weaker, for several reasons. One is that cultivated plants ...
Giacomo Catenazzi's user avatar
3 votes

Side effects of introducing cultivated variants of a plant into an area where the wild version grows?

If, by red leaved elder, you mean Sambucus nigra varieties such as 'Black Lace', it will have no impact on the local population of wild S. nigra. The black leaved cultivars are not self fertile, so ...
Bamboo's user avatar
  • 133k
3 votes
Accepted

Can I save a male pumpkin flower for later pollination?

Pumpkin plants normally put out female flowers when the plant is large enough to support the pumpkin. Pollen can be frozen, and it's best done when dried first. How long it lasts though depends on ...
Graham Chiu's user avatar
  • 23.3k
3 votes

What is the difference between male and female asparagus plants, and is it important for growing?

Asparagus beds can last for 50 years so you need to do some planning. The roots can extend down 10 or more feet deep so if solid is not that far down, I'd suggest you use a raised bed. You also need ...
Graham Chiu's user avatar
  • 23.3k
3 votes

Why do my passion fruit flowers lack pollen?

If you're watering the plant regularly then it is likely to be the PH of the soil. Passion fruit like a more acidic soil, a good does of chook manure should help, spent coffee grounds are also ...
Ed''s user avatar
  • 326
3 votes

How long can a bell pepper plant thrive while maintained indoors?

I grow outside hydropnically. and after a couple of years they start to look like small trees. If it freezes I bring them in. Going on 3 years. Green pepper, jalapno, serrano, and poblamo. Peppers ...
bill's user avatar
  • 31
3 votes

How long can a bell pepper plant thrive while maintained indoors?

I am entering my 6th winter with my habanero plant. I set it out on my deck from end of April until first frost. I haven't had any luck with bell or pablanos. I live in Indiana
Matt's user avatar
  • 31
3 votes
Accepted

Can humans pollinate Catharanthus by hand?

The easiest way is using a painting brush to move the pollen from the stamens onto the stigma. Just make sure the hairs of the brush get inside the flower and twist it around a bit, so you can be ...
Alina's user avatar
  • 5,436

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