Are there other "clever" bulbs?

I fight a loosing battle with Spanish Bluebells as have huge garden so cannot solely concentrate on their destruction. 8 years on and while they have lessened the ...... things are flowering away AGAIN.
My question is that now being an "expert" on digging the Bluebells up you find bulbs that are dormant when digging up the bulbs in growth, these are really difficult to see and are not just tiny bulbs either. So while I have on many occasions congratulated myself on having cleared a bed of all the bulbs with green growth, there will be 1000s of bulbs lurking anything up to 2ft or more below soil level just waiting to pounce next year. I cannot think of any other bulb with has the ability to have "back up" bulbs which would remain unaffected even if you attacked a patch with weed killer. Maybe some of you can think of another bulb which has evolved to be verging on the indestructible!

 

Not a bulb but a corm, Shamrocks

Had one come in from somewhere a few years back, got thousands now, each one makes loads of tiny corms and they are all on brittle roots so they break off when you try to weed them out.

 

I bought a few corns/bulbs 3 years ago from poundland and planted them in a bed with bush roses, 2 creeping roses, a jasmine and some lavender at the back ....

they have taken over the whole bed and hard to remove, but they look good though so I will leave them .... I only planted about 10 ... there were approx 300 last year

I cannot remember the name, but they look similar to this:

 

I'm assuming that's Oxalis Ziggy.
Brought some in myself on a load of manure many years ago,
Its still here.

 

Bigger than the little yellow flowered oxalis (got that too) and with pinky/purple flowers.

 

I try not to let it flower.

 

Maybe we should have a competition for who's got the most hellish things to try and get rid off. Rosebay Willowherb and Field Thistle, I'll start the list!

 

I suffer from hairy bittercress too, and the yellow-flowered oxalis - both prolific and virtually impossible to eradicate. I quite like rosebay willowherb in the right setting, it makes splendid prairie planting.

 

Bluebell bulbs are fairly big but Lesser Celandine is a real pain. However I have a friend who digs them up and sells the plants at car boot sales. I am not sure if she has any repeat sales.

 

Ground Elder; just a few minutes weeding has me in the most evil frame of mind. When I see it - out walking anywhere, I have to steel myself from going into a hissy fit!!

 

Monk's used to cultivate Ground Elder in their Physic gardens.

I got Creeping Thistle & Buxbaum's Speedwell, but i'm taking an ointment for it.

 

But you don't suffer from Hairy Bittercress, like Tiarella

 

No, need Blue Unction for that one