Can you identify this plant please

Farway

I saw these striking yellow flowers at RHS Wisley yesterday but didn't spot any label. Can you identify them for me?

Feathery foliage, growing in dry poor soil about 4 feet or and more tall, look a bit like fennel but didn't smell like it, and too early i would have thought

Katiehound

This is my thought, must be related to this- flowering time wrong-:

 Angelica archangelica is a tall stately plant with large bright green leaves. Although biennial treat as perennial as it self seeds easily. Striking flowerheads in the 2nd year that are greenish white with a sweet scent. They are usually popular statement plants at the Chelsea Flower Show .
 
Grows to 3-8ft (1-2.5m) tall. Hardy biennial. Stem can get to an arm's thickness at base. Flowers July-August.
 

biscan25

Ferula communis - Giant Fennel

Wiki Ferula communis, the giant fennel,[1] is a species of flowering plant in the carrot family Apiaceae. It is related to the common fennel (Foeniculum vulgare), which belongs to the same family.

Ferula communis is a tall herbaceous perennial plant. It is found in Mediterranean and East African woodlands and shrublands.[2][failed verification] It was known in antiquity as laser[3] or narthex.[4]

biscan25

But as above, flowering time is a bit early

Woolsery

There's many humble umbels, some with appalling names like Molopospermum peleponnesiacum which is a reliable favourite of mine. That does look like Ferula communis. Mine certainly isn't that size at present, but I've had them 7' tall and more when they've been in the mood.....which is rarely! 

https://www.specialplants.net/shop/seeds/ferula_communis/

Farway

Thank you everyone, I think the Giant Fennel fits the bill, the location is hot & dry so flowering would be early

Next stage is buy some seeds and give it a go

Woolsery

Farway said:

Next stage is buy some seeds and give it a go

I'd wait till new seed comes along in autumn now. Umbels often need stratifying and even Angelica can be a pig if the seed isn't fresh.

Farway

Woolsery said:

Farway said:

Next stage is buy some seeds and give it a go

I'd wait till new seed comes along in autumn now. Umbels often need stratifying and even Angelica can be a pig if the seed isn't fresh.

Ummm, good idea, I wonder if next visit to Wisley some seeds could catch on my clothes?

Although they do give seeds away to members so I'll check nearer the time

twopenny

I've been quietly reading because I know I've seen it before but just couldn't place it.

Really annoying

Woolsery

twopenny said:

I've been quietly reading because I know I've seen it before but just couldn't place it.

Really annoying

A weird coincidence happened when we moved here, Ferula isn't exactly common, so I was annoyed  at having to leave mine behind in our old garden. I knew it would never tolerate being dug up and it hadn't flowered so I'd no seed.

We came here in August  and there seemed to be 'something' growing in the front area that looked interesting, but I was busy and didn't study it.

The next spring up shot this Ferula, reaching way above my head. It flowered and set seed, so that was how I came to have them here without really trying.

[Deleted User]

This made me smile !
My mother loved this plant, she grew it in her cottage garden and it was everywhere you looked !