Can I keep this plant in my house all year long?
Sure! They require constant maintenance, such as repotting once or twice per year, and division, and root trimming to keep it in the same container for extended periods, but they do grow indoors with enough light.
These articles will help: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/lacecap-hydrangea-care.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-container-care.htm
This article should help:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm
Lace hydrangea was planted 10 days ago. Tips of leaves started to get brown and curl almost immediately. Picture enclosed I sprayed with neem oil. Did not seem to help much. Some of the buds are drying and not opening. Picture enclosed. What can I do to prevent the hydrangea from dying. The plants were rather costly. Thank you for your help.
Your photos did not come through, unfortunately.
There are a few things that can cause this. Transplant shock from wet soils will be the first consideration. This leads to infection and browning leaves.
The next will be the amount of sunlight. These will not tolerate full sun and need to be in a significant amount of shade.
Last, this time of year is not suitable for planting in most areas. This should be done earlier in the year to prevent failed transplants.
I am unable to see the state of the plant, and will be unable to see if it will survive. Once all environmental factors are corrected, then the plant may have a chance at recovery.
Here is an article that will help you to know what the plants need to survive:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/lacecap-hydrangea-care.htm
I recently bought this White Lace Cap Hydrangea and have repotted into John Inn is no 3. It gets sun in morning and shade later.
This article tells you all you need to know about growing your plant:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/lacecap-hydrangea-care.htm
The plant gets morning sun but shade the rest of the time.
Unfortunately, your photo did not come through. There are a few things that could cause these symptoms.
Here are some articles that will help in the meantime:
https://www.gardeningknowhow.com/plant-problems/pests/insects/woolly-aphid-control.htm
https://www.gardeningknowhow.com/plant-problems/disease/downy-mildew.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/what-is-soft-scale.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/lacecap-hydrangea-care.htm
I used to have this shrub that had beautiful flowers that looked like white lace and were flat on top. It was a fairly tall shrub, 3' approximately. I have scoured the Internet looking at pics but none are the same as what I had. Any idea on the name of this shrub?
It is very hard to say. There are several that match that description. Maybe this will help you get started in the right direction:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/lacecap-hydrangea-care.htm
I had lush green leaves this year but not one flower. I did prune last fall and fertilize with osamate early spring.
Depends on what type of hydrangea species this is. Hydrangea arborescens (also knows as Annabelle-like Hydrangeas or Smooth Hydrangeas) can be pruned now or better in late winter so new growth does not get zapped. But hydrangea macrophyllas (Big Leaf Hydrangea, French Hydrangea, Hortensia), Hydrangea Serrata (aka Mountain Hydrangea), Hydrangea Anoala subsp. Petiolaris (aka, Climbing Hydrangea) and Hydrangea Aspera (aka Rough Leaf Hydrangea) currently all have developed invisible flower buds at the ends of the stems/branches and should never be prune from mid/late until after they finish blooming. You can deadhead spent blooms at any time (cut the peduncle string that connects the bloom to the stem) and prune dead wood from prior years by the end of May. The last set of species mentioned above all bloom on old wood but some varieties bloom on old and new wood (both). Hydrangea arborescens only blooms on new wood and starts to develop/open blooms from around mid spring on forward, blooming in late spring or in the summer. You can use a general purpose, slow release, chemical fertilizer with a NPK Ratio of 10-10-10 per label directions in spring 2022 only (I am assuming no soil nutrient deficiencies and that the plant is well established). Or you can use 1 cup of cottonseed meal, organic compost or composted manure in spring only. It actually depends on other factors like how old and tall the plant is, soil type, any soil nutrient deficiencies, etc but a recently purchased hydrangea (the size of one one found at Lowes. HD or local plant nursery) may be fine with 1 cup of those three items... less when it is a cutting or smaller plant. Fertilize after all danger of frost has passed (ave. date of last frost is 1st week in May).