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Asked by
Anonymous on
July 13, 2017

Q. peneston,beardstongue

didn’t bloom last year,cut back nice new leaves but still no flower.heard they dont live long,is the plant done?planted new cutting,nice leaves but still no flowers,does this take more than one season?

Answered by
Downtoearthdigs on
July 14, 2017
Certified Expert
A.

Their are hundreds of varieties of Penstemon, and the growing zone and hardiness depends on the variety.
It may be too cold for the particular variety that you have planted.

Too cold or too warm and Penstemon will act as an annual.

https://www.gardeningknowhow.com/ornamental/flowers/penstemon/penstemon-beard-tongue.htm

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Asked by
Carmelita Britton on
August 4, 2017

Q. Plants poisonous to dogs

We have a new puppy who chews everything. Is Penstemon harmful to pets?

Answered by
shelley on
August 9, 2017
Certified Expert
Asked by
Carmelita Britton on
August 10, 2017

Q. Plants poisonous to dogs

I previously asked whether penstemen is poisonous to dogs. Answers posted referred me to the excellent ASPCA reference, which I actually had already checked prior to posting my question. I posted the question because neither their “poisonous” nor “non-poisonous” list includes penstemen. I’ll continue to check with other animal poison control sites and monitor this Gardening website to see if anyone else has other ideas,.

Answered by
MichiganDot on
August 10, 2017
A.

I assume you've talked to your vet, the person who will have the most up-to-date info. I was able to find this reference: http://www.wildflower.org/expert/show.php?id=12470

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Asked by
Anonymous on
October 3, 2017

Q. Penstemon rubrum

please can you tell me if this plant is harmful to cats if eaten ..
thank you mrs anita hill

Answered by
MichiganDot on
October 3, 2017
A.

It certainly isn't among the most toxic plants listed for cats but it isn't listed as safe either. (https://www.aspca.org/pet-care/animal-poison-control/cats-plant-list). That probably means there just isn't any information either way. I've grown penstemon for years and I've never seen my feline show any interest in it. It is always best to check with your local vet.

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Asked by
Anonymous on
May 5, 2018

Q. Beard-tongue and Jerusalem Sage

I planted my beard-tongue in a pot with Jerusalem Sage a couple of weeks ago. It’s been dry where we live (Central Texas) so I’ve watered it every 2-3 days to get the roots established. The lower leaves are turning brown. Am I over watering? Do I cut those off, do I trim the spent flowers? As well as the Jerusalem Sage – do I trim the spent flowers? Thank you!

Answered by
Downtoearthdigs on
May 6, 2018
Certified Expert
A.

Check the soil, is should be evenly moist. Do not let the roots dry out or sit in soggy soil.
Make sure the container has drainage.

In temperatures over 85 degrees F you may need to water twice a day.

Yes, deadheading the spent flowers will help encourage more flowering.

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