Perennials forum: Brunnera macrophylla ‘Sea Heart’

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Name: Clint Brown
Medina, TN (Zone 7b)
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clintbrown
Jun 1, 2016 2:27 PM CST

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Brunnera macrophylla ‘Sea Heart’ is a very good plant. I was a skeptic because I've never been able to grow 'Jack Frost' here. However, this plant's thick and rough leaves really do protect it from our heat more. It's a much improved version!


Name: Cindy
Hobart, IN zone 5
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Shadegardener
Jun 1, 2016 5:31 PM CST
Good to know! I failed twice with 'Jack Frost'.
Name: Bob
Vernon N.J. (Zone 6a)
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NJBob
Jun 1, 2016 5:34 PM CST

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Might have to give it a try, tried Jack Frost to many times.
Name: Bob
Vernon N.J. (Zone 6a)
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NJBob
Jun 5, 2016 8:35 PM CST

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I ordered a Sea Heart and a Silver Heart from the Santa Rosa clearance sale I figured at that price and that it is living down by you worth a try.
Pennsylvania (Zone 6b)
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Cinta
Jun 6, 2016 1:56 PM CST
Bob I do not have trouble growing Jack Frost. This may help with your new ones. By the way I ordered the two you ordered too with the herc. 2.99 sale. Anyway...........

Because my Jack Frost grows like a weed I am constantly dividing it and putting it in different places. the new one died if I did not dig deep fill the hole half filled the lots of moist compost then the best soil then watered every day They are all planted in very little sun. About two hrs of sun and filtered sun the rest of the day.
Name: Bob
Vernon N.J. (Zone 6a)
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NJBob
Jun 6, 2016 8:38 PM CST

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They did ok till the real heat and humidity of Aug.would come around. Have to admit I would never have the time to water every day, lucky if I can get to it once a week. In the new garden these will go in they should get just about no direct sun.
Name: Clint Brown
Medina, TN (Zone 7b)
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clintbrown
Jun 6, 2016 9:07 PM CST

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I didn't believe these would be that much better than Jack Frost, but Silver Heart and Sea Heart both do better in the heat and humidity here. The leaves really are thicker. I'll post a photo of Sea Heart tomorrow. It is growing fast. Silver Heart is too.
Name: Clint Brown
Medina, TN (Zone 7b)
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clintbrown
Jun 7, 2016 8:18 AM CST

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Here is 'Silver Heart.' It seems to be growing quicker lately. These plants are so healthy. They don't seem weak like 'Jack Frost' was here.
Thumb of 2016-06-07/clintbrown/fc6a55

Name: Bob
Vernon N.J. (Zone 6a)
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NJBob
Jun 7, 2016 8:30 AM CST

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Looks great, glade I ordered both of them.
springfield MO area (Zone 6a)
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Frillylily
Jul 27, 2016 8:44 AM CST
So @clintbrown are you saying that it goes dormant in summer heat/humidity? I have some hostas that look great in the spring, die back somewhat in the summer and then regrow in the fall and fill back in. Is that what Jack Frost does for you? I've never grown these but I'd like to.

Name: Rj
Just S of the twin cities of M (Zone 4b)
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crawgarden
Jul 27, 2016 4:04 PM CST
Originally 3 'Jack Frost,' grouping did great for several years...than nothing not sure what happened, the Sea Heart has not done much as far as growth...but it does seem to keep its foliage nicer longer into the season than Jack Frost.


Thumb of 2016-07-27/crawgarden/25b30e
Name: Rj
Just S of the twin cities of M (Zone 4b)
Garden Ideas: Level 1 Plant Identifier
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crawgarden
Jul 28, 2016 12:30 PM CST
Also have good luck with the variegata
Thumb of 2016-07-28/crawgarden/e56f77

Name: Bob
Vernon N.J. (Zone 6a)
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NJBob
Jul 28, 2016 7:49 PM CST

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Never see that one around anymore, it has been on the want list.
Name: Jeanie
Minnesota (Zone 4a)
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foraygardengirl
Aug 4, 2016 11:08 AM CST
I have been wanting to try Sea Heart. So far Emerald Mist is the only variegated brunnera I have been able to grow here. It is hard to find, but a really good plant.
:+:+:+:+:+:+:+:+:
Old gardeners never die. They are just pruned and repotted.
Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
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NJBob
Aug 4, 2016 7:15 PM CST

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Jeanie that is very pretty, I put in both Sea and Silver Heart both are doing well with Silver growing a bit quicker.
Name: Clint Brown
Medina, TN (Zone 7b)
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clintbrown
Aug 5, 2016 2:08 PM CST

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I spoke too soon. These died. They couldn't take our late July heat wave.
Name: Gary
Wyoming MN (Zone 4a)
hostasmore
Aug 5, 2016 3:07 PM CST
Clint are you sure they died and didn't just go dormant? Most of my varieties disappear during the summer come back in fall or spring.
springfield MO area (Zone 6a)
I was one of the first 300 contributors to the plant database! Plant Identifier
Frillylily
Aug 5, 2016 4:01 PM CST
keep watering them, they may come back in a month or so. sometimes my hosta do that.
Name: Clint Brown
Medina, TN (Zone 7b)
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clintbrown
Aug 5, 2016 4:16 PM CST

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They look dead to me. I don't see one green leaf. I hope they put back out!
Name: Rose
Oquawka, IL (Zone 5a)
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Rose1656
Aug 6, 2016 5:03 PM CST
I've lost the tag to this one, but it's either 'Sea Heart' or 'Silver Heart'. Whichever it is it's a vigorous grower. I ordered both and they do look a lot alike to me! This one is in full sun until mid afternoon and is doing great here. Not too much damage for this time of year. I've even divided it because it was getting too big here.
Thumb of 2016-08-06/Rose1656/46b4ca

Here's another that's in more shade
Thumb of 2016-08-06/Rose1656/bdd847

Alexander's Great is a slow grower for me, but it's still looking pretty good for August.
Thumb of 2016-08-06/Rose1656/adc3f8

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